Explain CVE-2010-1083
The processcompl_compat function in drivers/usb/core/devio.c in Linux kernel 2.6.x through 2.6.32, and possibly other versions, does not clear the transfer buffer before returning to userspace when a USB command fails, which might make it easier for physically proximate attackers to obtain sensitive information (kernel memory).
Affected Products: n/a
References: [{'name': '[linux-kernel] 20100330 [48/89] USB: usbfs: properly clean up the as structure on error paths', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://lkml.org/lkml/2010/3/30/759'}, {'name': 'oval:org.mitre.oval:def:10831', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10831'}, {'name': 'RHSA-2010:0723', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2010-0723.html'}, {'name': '[linux-kernel] 20100221 [80/93] USB: usbfs: properly clean up the as structure on error paths', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://lwn.net/Articles/375350/'}, {'name': '20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/520102/100/0/threaded'}, {'name': '46397', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/46397'}, {'name': 'RHSA-2010:0394', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2010-0394.html'}, {'name': '[oss-security] 20100217 additional memory leak in USB userspace handling', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2010/02/17/2'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://support.avaya.com/css/P8/documents/100090459'}, {'name': '[oss-security] 20100217 CVE request: kernel information leak via userspace USB interface', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2010/02/17/1'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.vmware.com/security/advisories/VMSA-2011-0012.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://support.avaya.com/css/P8/documents/100113326'}, {'name': 'SUSE-SA:2010:019', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html'}, {'name': 'SUSE-SA:2010:023', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://www.novell.com/linux/security/advisories/2010_23_kernel.html'}, {'name': '[oss-security] 20100218 Re: CVE request: kernel information leak via userspace USB interface', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2010/02/18/7'}, {'name': '[oss-security] 20100219 Re: additional memory leak in USB userspace handling', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2010/02/18/4'}, {'name': '39742', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/39742'}, {'name': '[oss-security] 20100219 Re: CVE request: kernel information leak via userspace USB interface', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2010/02/19/1'}, {'name': 'DSA-2053', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2010/dsa-2053'}, {'name': '39830', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/39830'}]
CVE State: PUBLISHED