Vulnerability Description
Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6, when CONFIG_XFS_DEBUG is disabled, allows local users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via an XFS image containing a symbolic link with a long pathname.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.12, < 3.0.11 |
Related Weaknesses (CWE)
References
- http://marc.info/?l=bugtraq&m=139447903326211&w=2Mailing ListThird Party Advisory
- http://oss.sgi.com/archives/xfs/2011-10/msg00345.htmlPatchThird Party Advisory
- http://secunia.com/advisories/48964Broken Link
- http://www.openwall.com/lists/oss-security/2011/10/26/1Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/10/26/3Mailing ListPatchThird Party Advisory
- http://xorl.wordpress.com/2011/12/07/cve-2011-4077-linux-kernel-xfs-readlink-memExploitThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=749156Issue TrackingPatchThird Party Advisory
- http://marc.info/?l=bugtraq&m=139447903326211&w=2Mailing ListThird Party Advisory
- http://oss.sgi.com/archives/xfs/2011-10/msg00345.htmlPatchThird Party Advisory
- http://secunia.com/advisories/48964Broken Link
- http://www.openwall.com/lists/oss-security/2011/10/26/1Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/10/26/3Mailing ListPatchThird Party Advisory
- http://xorl.wordpress.com/2011/12/07/cve-2011-4077-linux-kernel-xfs-readlink-memExploitThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=749156Issue TrackingPatchThird Party Advisory
FAQ
What is CVE-2011-4077?
CVE-2011-4077 is a vulnerability with a CVSS score of 6.9 (MEDIUM). Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6, when CONFIG_XFS_DEBUG is disabled, allows local users to cause a denial of service (memory corrupt...
How severe is CVE-2011-4077?
CVE-2011-4077 has been rated MEDIUM with a CVSS base score of 6.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4077?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.