vdanen/rhvex-cve huggingface dataset:
CVE-2021-38575 (Important severity, published 2021-06-07)
CVSS score: 8.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
CWE: CWE-119
Description: A flaw was found in edk2. Missing checks in the IScsiHexToBin function in NetworkPkg/IScsiDxe lead to a buffer overflow allowing a remote attacker, who can inject himself in the communication between edk2 and the iSCSI target, to write arbitrary data to any address in the edk2 firmware and potentially execute code. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2021-42780 (Low severity, published 2021-01-08)
CVSS score: 2 (CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CWE: CWE-252
Description: A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library.
CVE-2021-47078 (Moderate severity, published 2024-02-29)
CVSS score: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-416
Description: A use-after-free vulnerability was found in the Linux kernel, affecting the RDMA/rxe component. This issue occurs because the rxe_qp_do_cleanup() function depends on valid pointer values in the RXE QP structure. However, if that structure fails to initialize properly, it may populate with garbage values.
Statement: Red Hat Enterprise Linux 8 and 9 are not affected, as this vulnerability was already addressed in a previous release.
CVE-2021-47582 (Low severity, published 2024-06-18)
CVSS score: 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)
CWE: CWE-667
Description: In the Linux kernel, the following vulnerability has been resolved:

USB: core: Make do_proc_control() and do_proc_bulk() killable

The USBDEVFS_CONTROL and USBDEVFS_BULK ioctls invoke
usb_start_wait_urb(), which contains an uninterruptible wait with a
user-specified timeout value.  If timeout value is very large and the
device being accessed does not respond in a reasonable amount of time,
the kernel will complain about "Task X blocked for more than N
seconds", as found in testing by syzbot:

INFO: task syz-executor.0:8700 blocked for more than 143 seconds.
      Not tainted 5.14.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:23192 pid: 8700 ppid:  8455 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4681 [inline]
 __schedule+0xc07/0x11f0 kernel/sched/core.c:5938
 schedule+0x14b/0x210 kernel/sched/core.c:6017
 schedule_timeout+0x98/0x2f0 kernel/time/timer.c:1857
 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion_timeout+0x46/0x60 kernel/sched/completion.c:157
 usb_start_wait_urb+0x167/0x550 drivers/usb/core/message.c:63
 do_proc_bulk+0x978/0x1080 drivers/usb/core/devio.c:1236
 proc_bulk drivers/usb/core/devio.c:1273 [inline]
 usbdev_do_ioctl drivers/usb/core/devio.c:2547 [inline]
 usbdev_ioctl+0x3441/0x6b10 drivers/usb/core/devio.c:2713
...

To fix this problem, this patch replaces usbfs's calls to
usb_control_msg() and usb_bulk_msg() with special-purpose code that
does essentially the same thing (as recommended in the comment for
usb_start_wait_urb()), except that it always uses a killable wait and
it uses GFP_KERNEL rather than GFP_NOIO.
CVE-2021-3444 (Moderate severity, published 2021-02-12)
CVSS score: 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CWE: CWE-787
Description: An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script uses mod32 destination register truncation when the source register was known to be 0. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Statement: This flaw is rated as having Moderate impact because of the need to have elevated privileges or non-standard configuration for running BPF script.
Mitigation: The default Red Hat Enterprise Linux kernel prevents unprivileged users from being able to use eBPF by the kernel.unprivileged_bpf_disabled sysctl.   This would require a privileged user with CAP_SYS_ADMIN or root to be able to abuse this flaw reducing its attack space.

For the Red Hat Enterprise Linux 7 the eBPF for unprivileged users is always disabled.
For the Red Hat Enterprise Linux 8 to confirm the current state, inspect the sysctl with the command:

# cat /proc/sys/kernel/unprivileged_bpf_disabled

The setting of 1 would mean that unprivileged users can not use eBPF, mitigating the flaw.
CVE-2021-47351 (Moderate severity, published 2024-05-20)
CVSS score: 4.7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-362
Description: A vulnerability was found in the Linux kernel's UBIFS file system, where concurrent operations to set or get extended attributes (xattrs) and list xattrs could lead to assertion failures or memory corruption. This problem arises because the system does not properly handle simultaneous read and write requests, potentially causing stale xattr values or other inconsistencies.
Mitigation: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
CVE-2021-23440 (Moderate severity, published 2021-09-11)
CVSS score: 7.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CWE: CWE-843
Description: A type confusion vulnerability in nodejs-set-value can lead to a bypass of CVE-2019-10747. If the user-provided keys used in the path parameter are arrays, the function mixin-deep can be tricked into adding or modifying properties of Object.prototype using any of the constructor, prototype, or _proto_ payloads. This vulnerability can impact data confidentiality, integrity, and availability.
CVE-2021-26707 (Moderate severity, published 2021-01-25)
CVSS score: 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CWE: CWE-915
Description: The merge-deep library before 3.0.3 for Node.js can be tricked into overwriting properties of Object.prototype or adding new properties to it. These properties are then inherited by every object in the program, thus facilitating prototype-pollution attacks against applications using this library.
Statement: In OpenShift Container Platform 4.6 (OCP) the openshift4/ose-prometheus container ships the vulnerable version of the merge-deep, however the Prometheus react-ui is disabled, hence this flaw cannot be exploited. As openshift4/ose-prometheus container still packages the vulnerable code, this component is affected with impact Low. This may be fixed in a future release.
CVE-2021-47214 (Moderate severity, published 2024-04-09)
CVSS score: 6.1 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)
CWE: CWE-402
Description: A vulnerability was found in the Linux kernel, in the handling of memory reservations in the hugetlb subsystem and userfaultfd. This issue occurs during the error-handling process in the hugetlb_mcopy_atomic_pte() function. When an error is encountered, the system incorrectly calls restore_reserve_on_error(), which improperly removes memory reservations. This leads to a memory leak, as the following call to remove_inode_hugepages() erroneously increments the reserved hugepages counter. This vulnerability was fully resolved by modifying the process to correctly handle the reservation state and avoid unnecessary deletion in the event of an error.
CVE-2021-27815 (Low severity, published 2021-02-24)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
CWE: CWE-476
Description: NULL Pointer Deference in the exif command line tool, when printing out XML formatted EXIF data, in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file, causing the application to crash.
Statement: This only affects the command line utility, which is not shipped as part of libexif.
CVE-2021-47644 (Moderate severity, published 2025-02-25)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-401
Description: In the Linux kernel, the following vulnerability has been resolved:

media: staging: media: zoran: move videodev alloc

Move some code out of zr36057_init() and create new functions for handling
zr->video_dev. This permit to ease code reading and fix a zr->video_dev
memory leak.
CVE-2021-46956 (Low severity, published 2024-02-26)
CVSS score: 4.7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-401
Description: In the Linux kernel, the following vulnerability has been resolved:

virtiofs: fix memory leak in virtio_fs_probe()

When accidentally passing twice the same tag to qemu, kmemleak ended up
reporting a memory leak in virtiofs.  Also, looking at the log I saw the
following error (that's when I realised the duplicated tag):

  virtiofs: probe of virtio5 failed with error -17

Here's the kmemleak log for reference:

unreferenced object 0xffff888103d47800 (size 1024):
  comm "systemd-udevd", pid 118, jiffies 4294893780 (age 18.340s)
  hex dump (first 32 bytes):
    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........
    ff ff ff ff ff ff ff ff 80 90 02 a0 ff ff ff ff  ................
  backtrace:
    [<000000000ebb87c1>] virtio_fs_probe+0x171/0x7ae [virtiofs]
    [<00000000f8aca419>] virtio_dev_probe+0x15f/0x210
    [<000000004d6baf3c>] really_probe+0xea/0x430
    [<00000000a6ceeac8>] device_driver_attach+0xa8/0xb0
    [<00000000196f47a7>] __driver_attach+0x98/0x140
    [<000000000b20601d>] bus_for_each_dev+0x7b/0xc0
    [<00000000399c7b7f>] bus_add_driver+0x11b/0x1f0
    [<0000000032b09ba7>] driver_register+0x8f/0xe0
    [<00000000cdd55998>] 0xffffffffa002c013
    [<000000000ea196a2>] do_one_initcall+0x64/0x2e0
    [<0000000008f727ce>] do_init_module+0x5c/0x260
    [<000000003cdedab6>] __do_sys_finit_module+0xb5/0x120
    [<00000000ad2f48c6>] do_syscall_64+0x33/0x40
    [<00000000809526b5>] entry_SYSCALL_64_after_hwframe+0x44/0xae
CVE-2021-3501 (Important severity, published 2021-04-13)
CVSS score: 7.8 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H)
CWE: CWE-787
Description: A flaw was found in the Linux kernel. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
Statement: This issue affected Linux kernel versions as shipped with Red Hat Enterprise Linux 8 starting with RHEL-8.4.0 and onward kernel version.
Mitigation: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.
CVE-2021-20329 (Moderate severity, published 2021-03-29)
CVSS score: 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
CWE: CWE-20
Description: A flaw was found in Mongo. Specific cstrings input may not be properly validated in the MongoDB Go Driver when marshaling Go objects into BSON. This flaw allows a malicious user to use a Go object with a specific string to inject additional fields into marshaled documents.
CVE-2021-46242 (Moderate severity, published 2022-01-20)
CVSS score: 8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H)
CWE: CWE-416
Description: A use-after-free flaw was found in HDF5's component H5AC_unpin_entry.
Statement: In Red Hat OpenStack Platform, HDF5 is only included as part of a loose dependency trail from python3-hardware. Because there is a very low likelihood that an attacker would be able to exploit this vulnerability in a meaningful way, no RHOSP update will be provided at this time.
CVE-2021-3716 (Low severity, published 2021-08-15)
CVSS score: 3.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L)
CWE: CWE-924
Description: A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.
Statement: Red Hat Enterprise Linux 7 is not affected by this flaw as it ships an old version of `nbdkit` (v1.8.0) that does not include support for NBD Structured Replies.
Mitigation: In general, it is recommended to use forced TLS (--tls=require) to avoid MitM attacks in the first place. If opportunistic encryption must be used (--tls=yes), ensure that clients that want to use TLS will request structured replies after the encryption is enabled. If this cannot be done, apply network filtering (e.g., firewall, TCP wrappers, etc.) or use a Unix domain socket instead of TCP to ensure that untrusted clients cannot connect to nbdkit as a MitM attacker.
CVE-2021-47453 (Low severity, published 2024-05-21)
CVSS score: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-665
Description: In the Linux kernel, the following vulnerability has been resolved:

ice: Avoid crash from unnecessary IDA free

In the remove path, there is an attempt to free the aux_idx IDA whether
it was allocated or not.  This can potentially cause a crash when
unloading the driver on systems that do not initialize support for RDMA.
But, this free cannot be gated by the status bit for RDMA, since it is
allocated if the driver detects support for RDMA at probe time, but the
driver can enter into a state where RDMA is not supported after the IDA
has been allocated at probe time and this would lead to a memory leak.

Initialize aux_idx to an invalid value and check for a valid value when
unloading to determine if an IDA free is necessary.
CVE-2021-21685 (Important severity, published 2021-11-04)
CVSS score: 9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
CWE: CWE-281
Description: An incorrect permissions validation vulnerability was found in Jenkins. The FilePath#mkdirs does not check permission to create parent directories, which may allow an attacker who controls the agent process to get read and write arbitrary files on the Jenkins controller file system.
Mitigation: Red Hat has investigated whether a possible mitigation exists for this issue and has not been able to identify a practical example. Please update the affected package as soon as possible.
CVE-2021-47003 (Low severity, published 2024-02-27)
CVSS score: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-476
Description: In the Linux kernel, the following vulnerability has been resolved:

dmaengine: idxd: Fix potential null dereference on pointer status

There are calls to idxd_cmd_exec that pass a null status pointer however
a recent commit has added an assignment to *status that can end up
with a null pointer dereference.  The function expects a null status
pointer sometimes as there is a later assignment to *status where
status is first null checked.  Fix the issue by null checking status
before making the assignment.

Addresses-Coverity: ("Explicit null dereferenced")
CVE-2021-2412 (Moderate severity, published 2021-07-19)
CVSS score: 4.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
Description: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.21 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2021-28918 (Important severity, published 2021-03-28)
CVSS score: 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
CWE: CWE-918
Description: A flaw was found in nodejs-netmask. Octal input data may lead to a server-side request forgery, remote file inclusion, local file inclusion, and other vulnerabilities. The highest threat from this vulnerability is to data integrity.
Statement: The impact of this flaw largely depends on the environment where the affected library is being used. This flaw could be used to redirect an adversary to an exposed, unprotected endpoint. Depending on the functionality of the affected endpoint that could result in a loss of confidentiality, integrity and availability.
The affected library is used in Red Hat Advanced Cluster Management for Kubernetes only in the development and build processes. Consequently the severity of this flaw to RHACM is downgraded to low.
CVE-2021-35629 (Moderate severity, published 2021-10-18)
CVSS score: 4.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
Description: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.25 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2021-47516 (Low severity, published 2024-05-23)
CVSS score: 4.1 (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-400
Description: In the Linux kernel, the following vulnerability has been resolved:

nfp: Fix memory leak in nfp_cpp_area_cache_add()

In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a
CPP area structure. But in line 807 (#2), when the cache is allocated
failed, this CPP area structure is not freed, which will result in
memory leak.

We can fix it by freeing the CPP area when the cache is allocated
failed (#2).

792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size)
793 {
794 	struct nfp_cpp_area_cache *cache;
795 	struct nfp_cpp_area *area;

800	area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0),
801 				  0, size);
	// #1: allocates and initializes

802 	if (!area)
803 		return -ENOMEM;

805 	cache = kzalloc(sizeof(*cache), GFP_KERNEL);
806 	if (!cache)
807 		return -ENOMEM; // #2: missing free

817	return 0;
818 }
CVE-2021-45481 (Moderate severity, published 2021-12-16)
CVSS score: 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
CWE: CWE-401
Description: A segmentation violation vulnerability was found in webkitgtk. An attacker with network access could pass specially crafted HTML files causing an application to halt or crash.
CVE-2021-22945 (Moderate severity, published 2021-09-14)
CVSS score: 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)
CWE: CWE-416
Description: A flaw was found in libcurl. When sending data to an MQTT server could in some situations lead to libcurl using already freed memory and then try to free it again. The highest threat from this vulnerability is to data confidentiality as well as system availability.
Statement: The MQTT feature is not enabled by default in any of the curl version that Red Hat ships
CVE-2021-2042 (Low severity, published 2021-01-18)
CVSS score: 2.3 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N)
Description: Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.21 and prior. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data. CVSS 3.1 Base Score 2.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N).
CVE-2021-41991 (Moderate severity, published 2021-10-17)
CVSS score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-119
Description: The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility.
CVE-2021-3653 (Moderate severity, published 2021-08-16)
CVSS score: 8.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
CWE: CWE-862
Description: A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.
Statement: The nested virtualization feature is not enabled by default up to Red Hat Enterprise Linux 8.4. Most importantly, Red Hat currently provides nested virtualization only as a Technology Preview, and is therefore unsupported for production use. For additional details please see https://access.redhat.com/solutions/21101 and https://access.redhat.com/support/offerings/techpreview.
Mitigation: This vulnerability can be mitigated by disabling the nested virtualization feature:
```
# modprobe -r kvm_amd
# modprobe kvm_amd nested=0
```
CVE-2021-41092 (Moderate severity, published 2021-10-03)
CVSS score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
CWE: CWE-200
Description: A confidential data leak vulnerability was found in Docker CLI. The execution of `docker login` to a private registry may send provided credentials in a misconfigured docker credentials store to the registry-1.docker.io rather than the specified private registry. This flaw allows an attacker to steal private registry credentials. The highest threat from this vulnerability is to confidentiality.
CVE-2021-31810 (Moderate severity, published 2021-07-06)
CVSS score: 5.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)
CWE: CWE-200
Description: Ruby's Net::FTP module trusted the IP address included in the FTP server's response to the PASV command. A malicious FTP server could use this to make Ruby applications using the Net::FTP module to connect to arbitrary hosts and use this to perform port scanning or information extraction from systems not accessible from the FTP server.
Statement: Red Hat CloudForms 5.11 does not ship Ruby or RubyGem net-ftp and thus not affected by the flaw. RubyGem net-sftp (Ruby implementation of Secure File Transfer Protocol) which product ship is different library component from the affected package.
CVE-2021-23987 (Important severity, published 2021-03-22)
CVSS score: 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CWE: CWE-120
Description: The Mozilla Foundation Security Advisory describes this issue as:

Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
CVE-2021-3595 (Low severity, published 2021-06-13)
CVSS score: 3.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N)
CWE: CWE-824
Description: An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality.
Statement: This flaw affects the versions of SLiRP embedded in `qemu-kvm` as shipped with Red Hat Enterprise Linux 8 and RHEL Advanced Virtualization. A future update may address this issue. It is worth noting that although `qemu-kvm` is built with SLiRP networking support, due to its limitations, it is not used by the virtual machine guests by default.