CVE-2010-4249
Description
The wait_for_unix_gc function in net/unix/garbage.c in the Linux kernel before 2.6.37-rc3-next-20101125 does not properly select times for garbage collection of inflight sockets, which allows local users to cause a denial of service (system hang) via crafted use of the socketpair and sendmsg system calls for SOCK_SEQPACKET sockets.
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 2.6.37 - Unix Sockets Local Denial of Service
OS impact
Fedora Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 13 | Affected | — |
Linux kernel Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 2.6.37 | Affected | — |
| — | Affected | 2.6.37 |
References
- http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=9915672d41273f5b77f1b3c29b391ffb7732b84b
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052513.html
- http://lkml.org/lkml/2010/11/23/395
- http://lkml.org/lkml/2010/11/23/450
- http://lkml.org/lkml/2010/11/25/8
- http://marc.info/?l=linux-netdev&m=129059035929046&w=2
- http://secunia.com/advisories/42354
- http://secunia.com/advisories/42745
- http://secunia.com/advisories/42890
- http://secunia.com/advisories/42963
- http://secunia.com/advisories/46397
- http://www.exploit-db.com/exploits/15622/
- http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.37-rc3-next-20101125.bz2
- http://www.openwall.com/lists/oss-security/2010/11/24/10
- http://www.openwall.com/lists/oss-security/2010/11/24/2
- http://www.redhat.com/support/errata/RHSA-2011-0007.html
- http://www.redhat.com/support/errata/RHSA-2011-0162.html
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.securityfocus.com/bid/45037
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://www.vupen.com/english/advisories/2010/3321
- http://www.vupen.com/english/advisories/2011/0168
- https://bugzilla.redhat.com/show_bug.cgi?id=656756
- http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git%3Ba=commit%3Bh=9915672d41273f5b77f1b3c29b391ffb7732b84b
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052513.html
CWEs
CWE-400
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.