Vulnerability Description
The log_prefix function in kernel/printk.c in the Linux kernel 3.x before 3.4.33 does not properly remove a prefix string from a syslog header, which allows local users to cause a denial of service (buffer overflow and system crash) by leveraging /dev/kmsg write access and triggering a call_console_drivers function call.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 3.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.33
- http://www.openwall.com/lists/oss-security/2013/02/26/9
- https://bugzilla.redhat.com/show_bug.cgi?id=916075
- https://github.com/torvalds/linux/commit/ce0030c00f95cf9110d9cdcd41e901e1fb81441
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.33
- http://www.openwall.com/lists/oss-security/2013/02/26/9
- https://bugzilla.redhat.com/show_bug.cgi?id=916075
- https://github.com/torvalds/linux/commit/ce0030c00f95cf9110d9cdcd41e901e1fb81441
FAQ
What is CVE-2013-1772?
CVE-2013-1772 is a vulnerability with a CVSS score of 4.0 (MEDIUM). The log_prefix function in kernel/printk.c in the Linux kernel 3.x before 3.4.33 does not properly remove a prefix string from a syslog header, which allows local users to cause a denial of service (b...
How severe is CVE-2013-1772?
CVE-2013-1772 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-1772?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.