Explain CVE-2009-1337
The exit_notify function in kernel/exit.c in the Linux kernel before 2.6.30-rc1 does not restrict exit signals when the CAP_KILL capability is held, which allows local users to send an arbitrary signal to a process by running a program that modifies the exit_signal field and then uses an exec system call to launch a setuid application.
Affected Products: n/a
References: [{'name': '35390', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35390'}, {'name': 'MDVSA-2009:135', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2009:135'}, {'name': '20100625 VMSA-2010-0010 ESX 3.5 third party update for Service Console kernel', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/512019/100/0/threaded'}, {'name': '35226', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35226'}, {'name': 'SUSE-SA:2009:028', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html'}, {'name': '37471', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/37471'}, {'name': '35160', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35160'}, {'name': 'FEDORA-2009-5356', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.html'}, {'name': 'SUSE-SA:2009:032', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00002.html'}, {'name': '[oss-security] 20090407 CVE request: kernel: exit_notify: kill the wrong capable(CAP_KILL) check', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/04/07/1'}, {'name': '35656', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35656'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.vmware.com/security/advisories/VMSA-2009-0016.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=493771'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=432870dab85a2f69dc417022646cb9a70acf7f94'}, {'name': 'DSA-1794', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2009/dsa-1794'}, {'name': '20090516 rPSA-2009-0084-1 kernel', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/503610/100/0/threaded'}, {'name': 'SUSE-SA:2009:030', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html'}, {'name': '[linux-kernel] 20090225 Re: [PATCH 2/2] exit_notify: kill the wrong capable(CAP_KILL) check', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=linux-kernel&m=123560588713763&w=2'}, {'name': '35324', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35324'}, {'name': '35185', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35185'}, {'name': '35015', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35015'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://patchwork.kernel.org/patch/16544/'}, {'name': 'oval:org.mitre.oval:def:11206', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11206'}, {'name': '35011', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35011'}, {'name': '20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/507985/100/0/threaded'}, {'name': '35120', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35120'}, {'name': 'SUSE-SA:2009:031', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html'}, {'name': 'USN-793-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/usn-793-1'}, {'name': '34981', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/34981'}, {'name': 'DSA-1800', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2009/dsa-1800'}, {'name': 'RHSA-2009:1077', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2009-1077.html'}, {'name': '1022141', 'tags': ['vdb-entry', 'x_refsource_SECTRACK'], 'url': 'http://www.securitytracker.com/id?1022141'}, {'name': '34405', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/34405'}, {'name': '35387', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35387'}, {'name': '34917', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/34917'}, {'name': 'RHSA-2009:1550', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'https://rhn.redhat.com/errata/RHSA-2009-1550.html'}, {'name': 'DSA-1787', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2009/dsa-1787'}, {'name': 'RHSA-2009:1024', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2009-1024.html'}, {'name': 'MDVSA-2009:119', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2009:119'}, {'name': '[oss-security] 20090417 Re: CVE request: kernel: exit_notify: kill the wrong capable(CAP_KILL) check', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/04/17/3'}, {'name': 'RHSA-2009:0473', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://rhn.redhat.com/errata/RHSA-2009-0473.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://wiki.rpath.com/Advisories:rPSA-2009-0084'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc1'}, {'name': 'RHSA-2009:0451', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2009-0451.html'}, {'name': 'oval:org.mitre.oval:def:8295', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8295'}, {'name': '35121', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35121'}, {'name': 'ADV-2009-3316', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2009/3316'}, {'name': '35394', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35394'}, {'name': 'oval:org.mitre.oval:def:10919', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10919'}]
CVE State: PUBLISHED