CVE-2013-1763
Description
Array index error in the __sock_diag_rcv_msg function in net/core/sock_diag.c in the Linux kernel before 3.7.10 allows local users to gain privileges via a large family value in a Netlink message.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Linux Kernel 3.3.x < 3.7.x (Arch Linux x86-64) - 'sock_diag_handlers[]' Local Privilege Escalation (1)
Linux Kernel 3.7.10 (Ubuntu 12.10 x64) - 'sock_diag_handlers' Local Privilege Escalation (2)
Linux Kernel 3.3 < 3.8 (Ubuntu / Fedora 18) - 'sock_diag_handlers()' Local Privilege Escalation (3)
Linux Kernel < 3.5.0-23 (Ubuntu 12.04.2 x64) - 'SOCK_DIAG' SMEP Bypass Local Privilege Escalation
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 3.4.34 |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6e601a53566d84e1ffd25e7b6fe0b6894ffd79c0
- http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html
- http://openwall.com/lists/oss-security/2013/02/25/12
- http://www.exploit-db.com/exploits/24555
- http://www.exploit-db.com/exploits/24746
- http://www.exploit-db.com/exploits/33336
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.10
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/02/24/3
- http://www.ubuntu.com/usn/USN-1749-1
- http://www.ubuntu.com/usn/USN-1750-1
- http://www.ubuntu.com/usn/USN-1751-1
- https://bugzilla.redhat.com/show_bug.cgi?id=915052
- https://github.com/torvalds/linux/commit/6e601a53566d84e1ffd25e7b6fe0b6894ffd79c0
- https://security-tracker.debian.org/tracker/CVE-2013-1763
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.