CVE-2009-4131
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.79%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.79% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
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/2009/12/9/255Patch
- http://secunia.com/advisories/37658Vendor Advisory
- http://secunia.com/advisories/37686
- http://secunia.com/advisories/38017
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.logPatch
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
- http://www.securityfocus.com/bid/37277Patch
- http://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/
- http://www.ubuntu.com/usn/USN-869-1
- http://www.vupen.com/english/advisories/2009/3468Patch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=544471Patch
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00702.html
- 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/2009/12/9/255Patch
- http://secunia.com/advisories/37658Vendor Advisory
- http://secunia.com/advisories/37686
- http://secunia.com/advisories/38017
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.logPatch
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
- http://www.securityfocus.com/bid/37277Patch
- http://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/
- http://www.ubuntu.com/usn/USN-869-1
- http://www.vupen.com/english/advisories/2009/3468Patch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=544471Patch
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00702.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.