Vulnerability Description
The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.1 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c290f8Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1221.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.1
- http://www.openwall.com/lists/oss-security/2015/03/13/17
- https://bugzilla.redhat.com/show_bug.cgi?id=1201887
- https://github.com/torvalds/linux/commit/c290f8358acaeffd8e0c551ddcc24d120614337Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c290f8Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1221.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.1
- http://www.openwall.com/lists/oss-security/2015/03/13/17
- https://bugzilla.redhat.com/show_bug.cgi?id=1201887
- https://github.com/torvalds/linux/commit/c290f8358acaeffd8e0c551ddcc24d120614337Vendor Advisory
FAQ
What is CVE-2011-5321?
CVE-2011-5321 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and s...
How severe is CVE-2011-5321?
CVE-2011-5321 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-5321?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.