CVE-2009-4131

23Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 0.8%

from disclosure to weapon0 days

Published on NVDDec 13

1st PoCNov 9

exploitation probability

0.8%top 47% of all CVEs

observed exploitation

nono source reports it

1 public exploit(s)

The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions.

Affected products

n/a · n/a

public PoCs found — 1✓ VexDay Proof

exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/33395

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git%3Ba=commit%3Bh=4a58579b9e4e2a35d57e6c9c8483e52f6f1b7fd6 http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html http://lkml.org/lkml/2009/12/9/255 https://bugzilla.redhat.com/show_bug.cgi?id=544471 http://secunia.com/advisories/37658 http://secunia.com/advisories/37686 http://secunia.com/advisories/38017 https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00702.html http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.log http://www.mandriva.com/security/advisories?name=MDVSA-2009:329 http://www.securityfocus.com/bid/37277 http://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/