CVE-2012-3520
Vulnerability Summary
Timeline
Description
The Netlink implementation in the Linux kernel before 3.2.30 does not properly handle messages that lack SCM_CREDENTIALS data, which might allow local users to spoof Netlink communication via a crafted message, as demonstrated by a message to (1) Avahi or (2) NetworkManager.
CVSS Metrics
- v2.0•LOW•Score: 1.9AV:L/AC:M/Au:N/C:N/I:P/A:N
EPSS Trends
Current EPSS score: 0.08%• Percentile: 25%
Techniques & Countermeasures
- CWE-287•Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Systems
- linux•linux_kernel
≤ 3.2.29 | 2.3.2 | 2.3.20 | 2.3.21 | 2.3.22 | 2.3.23 | 2.3.24 | 2.3.25 | 2.3.26 | 2.3.27 | 2.3.28 | 2.3.29 | 2.4.33.2 | 2.6.13.2 | 2.6.23.2 | 2.6.33.2 | 2.6.33.20 | 3.2 | 3.2:rc2 | 3.2:rc3 | 3.2:rc4 | 3.2:rc5 | 3.2:rc6 | 3.2:rc7 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.2.6 | 3.2.7 | 3.2.8 | 3.2.9 | 3.2.10 | 3.2.11 | 3.2.12 | 3.2.13 | 3.2.14 | 3.2.15 | 3.2.16 | 3.2.17 | 3.2.18 | 3.2.19 | 3.2.20 | 3.2.21 | 3.2.22 | 3.2.23 | 3.2.24 | 3.2.25 | 3.2.26 | 3.2.27 | 3.2.28 | 3.3.2
References (12)
- http://www.openwall.com/lists/oss-security/2012/08/22/1
- http://www.securityfocus.com/bid/55152
- http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00005.html
- https://github.com/torvalds/linux/commit/e0e3cea46d31d23dc40df0a49a7a2c04fe8edfea
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e0e3cea46d31d23dc40df0a49a7a2c04fe8edfea
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.ubuntu.com/usn/USN-1599-1
- http://www.ubuntu.com/usn/USN-1610-1
- http://lists.opensuse.org/opensuse-updates/2013-02/msg00018.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.30
- http://secunia.com/advisories/50848
- https://bugzilla.redhat.com/show_bug.cgi?id=850449