Vulnerability Description
Off-by-one error in the build_unc_path_to_root function in fs/cifs/connect.c in the Linux kernel before 3.9.6 allows remote attackers to cause a denial of service (memory corruption and system crash) via a DFS share mount operation that triggers use of an unexpected DFS referral name length.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.8, < 3.9.6 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.6Vendor Advisory
- http://www.openwall.com/lists/oss-security/2013/08/14/10Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=998401Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/1fc29bacedeabb278080e31bb9c1ecb49f143c3ExploitPatchThird Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.6Vendor Advisory
- http://www.openwall.com/lists/oss-security/2013/08/14/10Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=998401Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/1fc29bacedeabb278080e31bb9c1ecb49f143c3ExploitPatchThird Party Advisory
FAQ
What is CVE-2013-4247?
CVE-2013-4247 is a vulnerability with a CVSS score of 7.8 (HIGH). Off-by-one error in the build_unc_path_to_root function in fs/cifs/connect.c in the Linux kernel before 3.9.6 allows remote attackers to cause a denial of service (memory corruption and system crash) ...
How severe is CVE-2013-4247?
CVE-2013-4247 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-4247?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.