CVE-2012-6538
low
CVSS v3
—
CVSS v2
1.9
VIR risk
1.9
Description
The copy_to_user_auth function in net/xfrm/xfrm_user.c in the Linux kernel before 3.6 uses an incorrect C library function for copying a string, which allows local users to obtain sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2012-6538
Vendor advisory: cve@mitre.org — https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| linux-kernel | affected | | |
| linux-kernel | 3.0 | affected | |
| linux-kernel | 3.0.1 | affected | |
| linux-kernel | 3.0.2 | affected | |
| debian | bookworm | fixed | 3.2.32-1 |
| debian | bullseye | fixed | 3.2.32-1 |
| debian | forky | fixed | 3.2.32-1 |
| debian | sid | fixed | 3.2.32-1 |
| debian | trixie | fixed | 3.2.32-1 |
| linux-kernel | 3.0.3 | affected | |
| linux-kernel | 3.0.4 | affected | |
| linux-kernel | 3.0.5 | affected | |
| linux-kernel | 3.0.6 | affected | |
| linux-kernel | 3.0.7 | affected | |
| linux-kernel | 3.0.8 | affected | |
| linux-kernel | 3.0.9 | affected | |
| linux-kernel | 3.0.10 | affected | |
| linux-kernel | 3.0.11 | affected | |
| linux-kernel | 3.0.12 | affected | |
| linux-kernel | 3.0.13 | affected | |
| linux-kernel | 3.0.14 | affected | |
| linux-kernel | 3.0.15 | affected | |
| linux-kernel | 3.0.16 | affected | |
| linux-kernel | 3.0.17 | affected | |
| linux-kernel | 3.0.18 | affected | |
| linux-kernel | 3.0.19 | affected | |
| linux-kernel | 3.0.20 | affected | |
| linux-kernel | 3.0.21 | affected | |
| linux-kernel | 3.0.22 | affected | |
| linux-kernel | 3.0.23 | affected | |
| linux-kernel | 3.0.24 | affected | |
| linux-kernel | 3.0.25 | affected | |
| linux-kernel | 3.0.26 | affected | |
| linux-kernel | 3.0.27 | affected | |
| linux-kernel | 3.0.28 | affected | |
| linux-kernel | 3.0.29 | affected | |
| linux-kernel | 3.0.30 | affected | |
| linux-kernel | 3.0.31 | affected | |
| linux-kernel | 3.0.32 | affected | |
| linux-kernel | 3.0.33 | affected | |
| linux-kernel | 3.0.34 | affected | |
| linux-kernel | 3.0.35 | affected | |
| linux-kernel | 3.0.36 | affected | |
| linux-kernel | 3.0.37 | affected | |
| linux-kernel | 3.0.38 | affected | |
| linux-kernel | 3.0.39 | affected | |
| linux-kernel | 3.0.40 | affected | |
| linux-kernel | 3.0.41 | affected | |
| linux-kernel | 3.0.42 | affected | |
| linux-kernel | 3.0.43 | affected | |
| linux-kernel | 3.0.44 | affected | |
| linux-kernel | 3.0.45 | affected | |
| linux-kernel | 3.0.46 | affected | |
| linux-kernel | 3.0.47 | affected | |
| linux-kernel | 3.0.48 | affected | |
| linux-kernel | 3.0.49 | affected | |
| linux-kernel | 3.0.50 | affected | |
| linux-kernel | 3.0.51 | affected | |
| linux-kernel | 3.0.52 | affected | |
| linux-kernel | 3.0.53 | affected | |
| linux-kernel | 3.0.54 | affected | |
| linux-kernel | 3.0.55 | affected | |
| linux-kernel | 3.0.56 | affected | |
| linux-kernel | 3.0.57 | affected | |
| linux-kernel | 3.0.58 | affected | |
| linux-kernel | 3.0.59 | affected | |
| linux-kernel | 3.0.60 | affected | |
| linux-kernel | 3.0.61 | affected | |
| linux-kernel | 3.0.62 | affected | |
| linux-kernel | 3.0.63 | affected | |
| linux-kernel | 3.0.64 | affected | |
| linux-kernel | 3.0.65 | affected | |
| linux-kernel | 3.0.66 | affected | |
| linux-kernel | 3.0.67 | affected | |
| linux-kernel | 3.0.68 | affected | |
| linux-kernel | 3.1 | affected | |
| linux-kernel | 3.1.1 | affected | |
| linux-kernel | 3.1.2 | affected | |
| linux-kernel | 3.1.3 | affected | |
| linux-kernel | 3.1.4 | affected | |
| linux-kernel | 3.1.5 | affected | |
| linux-kernel | 3.1.6 | affected | |
| linux-kernel | 3.1.7 | affected | |
| linux-kernel | 3.1.8 | affected | |
| linux-kernel | 3.1.9 | affected | |
| linux-kernel | 3.1.10 | affected | |
| linux-kernel | 3.2 | affected | |
| linux-kernel | 3.2.1 | affected | |
| linux-kernel | 3.2.2 | affected | |
| linux-kernel | 3.2.3 | affected | |
| linux-kernel | 3.2.4 | affected | |
| linux-kernel | 3.2.5 | affected | |
| linux-kernel | 3.2.6 | affected | |
| linux-kernel | 3.2.7 | affected | |
| linux-kernel | 3.2.8 | affected | |
| linux-kernel | 3.2.9 | affected | |
| linux-kernel | 3.2.10 | affected | |
| linux-kernel | 3.2.11 | affected | |
| linux-kernel | 3.2.12 | affected | |
| linux-kernel | 3.2.13 | affected | |
| linux-kernel | 3.2.14 | affected | |
| linux-kernel | 3.2.15 | affected | |
| linux-kernel | 3.2.16 | affected | |
| linux-kernel | 3.2.17 | affected | |
| linux-kernel | 3.2.18 | affected | |
| linux-kernel | 3.2.19 | affected | |
| linux-kernel | 3.2.20 | affected | |
| linux-kernel | 3.2.21 | affected | |
| linux-kernel | 3.2.22 | affected | |
| linux-kernel | 3.2.23 | affected | |
| linux-kernel | 3.2.24 | affected | |
| linux-kernel | 3.2.25 | affected | |
| linux-kernel | 3.2.26 | affected | |
| linux-kernel | 3.2.27 | affected | |
| linux-kernel | 3.2.28 | affected | |
| linux-kernel | 3.2.29 | affected | |
| linux-kernel | 3.2.30 | affected | |
| linux-kernel | 3.3 | affected | |
| linux-kernel | 3.3.1 | affected | |
| linux-kernel | 3.3.2 | affected | |
| linux-kernel | 3.3.3 | affected | |
| linux-kernel | 3.3.4 | affected | |
| linux-kernel | 3.3.5 | affected | |
| linux-kernel | 3.3.6 | affected | |
| linux-kernel | 3.3.7 | affected | |
| linux-kernel | 3.3.8 | affected | |
| linux-kernel | 3.4 | affected | |
| linux-kernel | 3.4.1 | affected | |
| linux-kernel | 3.4.2 | affected | |
| linux-kernel | 3.4.3 | affected | |
| linux-kernel | 3.4.4 | affected | |
| linux-kernel | 3.4.5 | affected | |
| linux-kernel | 3.4.6 | affected | |
| linux-kernel | 3.4.7 | affected | |
| linux-kernel | 3.4.8 | affected | |
| linux-kernel | 3.4.9 | affected | |
| linux-kernel | 3.4.10 | affected | |
| linux-kernel | 3.4.11 | affected | |
| linux-kernel | 3.4.12 | affected | |
| linux-kernel | 3.4.13 | affected | |
| linux-kernel | 3.4.14 | affected | |
| linux-kernel | 3.4.15 | affected | |
| linux-kernel | 3.4.16 | affected | |
| linux-kernel | 3.4.17 | affected | |
| linux-kernel | 3.4.18 | affected | |
| linux-kernel | 3.4.19 | affected | |
| linux-kernel | 3.4.20 | affected | |
| linux-kernel | 3.4.21 | affected | |
| linux-kernel | 3.4.22 | affected | |
| linux-kernel | 3.4.23 | affected | |
| linux-kernel | 3.4.24 | affected | |
| linux-kernel | 3.4.25 | affected | |
| linux-kernel | 3.4.26 | affected | |
| linux-kernel | 3.4.27 | affected | |
| linux-kernel | 3.4.28 | affected | |
| linux-kernel | 3.4.29 | affected | |
| linux-kernel | 3.4.30 | affected | |
| linux-kernel | 3.4.31 | affected | |
| linux-kernel | 3.4.32 | affected | |
| linux-kernel | 3.5.1 | affected | |
| linux-kernel | 3.5.2 | affected | |
| linux-kernel | 3.5.3 | affected | |
| linux-kernel | 3.5.4 | affected | |
| linux-kernel | 3.5.5 | affected | |
| linux-kernel | 3.5.6 | affected | |
| rhel | 6.0 | affected | |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c87308bdea31a7b4828a51f6156e6f721a1fcc9
- http://rhn.redhat.com/errata/RHSA-2013-0744.html
- http://www.openwall.com/lists/oss-security/2013/03/05/13
- https://github.com/torvalds/linux/commit/4c87308bdea31a7b4828a51f6156e6f721a1fcc9
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2
- https://security-tracker.debian.org/tracker/CVE-2012-6538
CWEs
CWE-200
Verify integrity in audit chain (admin only). AS-IS.