Explain CVE-2014-1874
The security_context_to_sid_core function in security/selinux/ss/services.c in the Linux kernel before 3.13.4 allows local users to cause a denial of service (system crash) by leveraging the CAP_MAC_ADMIN capability to set a zero-length security context.
Affected Products: n/a
References: [{'name': 'USN-2135-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2135-1'}, {'name': 'USN-2138-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2138-1'}, {'name': 'USN-2137-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2137-1'}, {'name': 'USN-2141-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2141-1'}, {'name': 'USN-2129-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2129-1'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2172fa709ab32ca60e86179dc67d0857be8e2c98'}, {'name': 'USN-2136-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2136-1'}, {'name': 'USN-2128-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2128-1'}, {'name': 'USN-2140-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2140-1'}, {'name': '[oss-security] 20140206 Re: CVE Request: Linux kernel: SELinux local DoS', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2014/02/07/2'}, {'name': '59262', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/59262'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1062356'}, {'name': 'USN-2139-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2139-1'}, {'name': '59309', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/59309'}, {'name': '59406', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/59406'}, {'name': 'USN-2134-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2134-1'}, {'name': '65459', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/65459'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://linux.oracle.com/errata/ELSA-2014-0771.html'}, {'name': 'USN-2133-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2133-1'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://github.com/torvalds/linux/commit/2172fa709ab32ca60e86179dc67d0857be8e2c98'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.4'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://linux.oracle.com/errata/ELSA-2014-3043.html'}, {'name': 'SUSE-SU-2015:0812', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html'}]
CVE State: PUBLISHED