What’s Vulnerable › Vulnerabilities

CVE-2013-6763

• Severity: medium (CVSS 6.9 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-11-12 · updated 2026-06-17
• Weakness: CWE-119

Description

The uio_mmap_physical function in drivers/uio/uio.c in the Linux kernel before 3.12 does not validate the size of a memory block, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via crafted mmap operations, a different vulnerability than CVE-2013-4511.

Affected products

• Linux kernel: before 3.2.53; from 3.3 before 3.4.71; from 3.5 before 3.10.19; from 3.11 before 3.11.8 — fixed in 3.10.19, 3.11.8, 3.2.53, 3.4.71

How to fix

Upgrade to a fixed version: Linux kernel 3.10.19, 3.11.8, 3.2.53, 3.4.71. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7314e613d5ff9f0934f7a0f74ed7973b903315d1
• http://www.openwall.com/lists/oss-security/2013/11/04/22
• http://www.ubuntu.com/usn/USN-2064-1
• http://www.ubuntu.com/usn/USN-2065-1
• http://www.ubuntu.com/usn/USN-2066-1
• http://www.ubuntu.com/usn/USN-2067-1
• http://www.ubuntu.com/usn/USN-2068-1
• http://www.ubuntu.com/usn/USN-2069-1
• http://www.ubuntu.com/usn/USN-2070-1
• http://www.ubuntu.com/usn/USN-2071-1
• http://www.ubuntu.com/usn/USN-2072-1
• http://www.ubuntu.com/usn/USN-2073-1

Get alerted when CVE-2013-6763 or the next vulnerability affects your stack