What is CVE-2013-6763?

CVE-2013-6763 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.9 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2013-6763 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2013-6763?

CVE-2013-6763 has a CVSS score of 6.9 out of 10, rated Medium severity. The vector string is AV:L/AC:M/Au:N/C:C/I:C/A:C.

Is there a patch available for CVE-2013-6763?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2013-6763 patch availability.

Is CVE-2013-6763 actively exploited?

CVE-2013-6763 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2013-6763

Medium

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.

Package Linux Kernel

Published 2013-11-12

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

6.9

out of 10

Medium

Attack Vector

Local

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Vector string

AV:L/AC:M/Au:N/C:C/I:C/A:C

Weakness type

CWE-119

CVE-2013-6763 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

17 total

GitHub
https://github.com/torvalds/linux/commit/7314e613d5ff9f0934f7a0f74ed7973b903315d1

Exploit Patch
Kernel.org
https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2

Patch
Kernel Git
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7314e613d5ff9f0934f7a0f74ed7973b903315d1

Broken Link
Openwall
http://www.openwall.com/lists/oss-security/2013/11/04/22

Mailing List Third Party Advisory VDB Entry
Ubuntu Security
http://www.ubuntu.com/usn/USN-2064-1

Third Party Advisory VDB Entry

Showing 5 of 17 references View all on NVD

Details

CVE ID CVE-2013-6763

Severity Medium

CVSS score 6.9 / 10

CVSS version 2.0

Published 2013-11-12

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2013-6763?

CVE-2013-6763 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.9 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2013-6763 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2013-6763?

CVE-2013-6763 has a CVSS score of 6.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:C/I:C/A:C.
Is there a patch available for CVE-2013-6763?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2013-6763 patch availability.
Is CVE-2013-6763 actively exploited?

No. CVE-2013-6763 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.