CVE-2012-2123
Description
The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.
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.
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 3.0.29 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445
- http://rhn.redhat.com/errata/RHSA-2012-0670.html
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://www.debian.org/security/2012/dsa-2469
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3
- http://www.openwall.com/lists/oss-security/2012/04/20/6
- http://www.securityfocus.com/bid/53166
- http://www.securitytracker.com/id?1027072
- https://bugzilla.redhat.com/show_bug.cgi?id=806722
- https://exchange.xforce.ibmcloud.com/vulnerabilities/75043
- https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445
- http://rhn.redhat.com/errata/RHSA-2012-0670.html
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://www.debian.org/security/2012/dsa-2469
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3
- http://www.openwall.com/lists/oss-security/2012/04/20/6
- http://www.securityfocus.com/bid/53166
- http://www.securitytracker.com/id?1027072
- https://bugzilla.redhat.com/show_bug.cgi?id=806722
- https://exchange.xforce.ibmcloud.com/vulnerabilities/75043
- https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445
CWEs
CWE-264
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.