Vulnerability Description
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.39 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://marc.info/?l=linux-cifs&m=130204357001849&w=2ExploitThird Party Advisory
- http://marc.info/?l=linux-cifs&m=130204730006155&w=2Third Party Advisory
- http://securityreason.com/securityalert/8367Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2011/05/09/2ExploitMailing ListPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=703016ExploitIssue TrackingPatch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://marc.info/?l=linux-cifs&m=130204357001849&w=2ExploitThird Party Advisory
- http://marc.info/?l=linux-cifs&m=130204730006155&w=2Third Party Advisory
- http://securityreason.com/securityalert/8367Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2011/05/09/2ExploitMailing ListPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=703016ExploitIssue TrackingPatch
FAQ
What is CVE-2011-1771?
CVE-2011-1771 is a vulnerability with a CVSS score of 7.8 (HIGH). The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact...
How severe is CVE-2011-1771?
CVE-2011-1771 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-2011-1771?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.