What is CVE-2011-2496?

CVE-2011-2496 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10. CVE-2011-2496 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-2496?

CVE-2011-2496 has a CVSS score of 4.9 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2011-2496?

No patch is currently available for CVE-2011-2496. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-2496 actively exploited?

CVE-2011-2496 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2011-2496

Medium

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.

Package Linux Kernel

Published 2012-06-13

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.9

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

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

Weakness type

CWE-189

CVE-2011-2496 is classified as CWE-189

See CWE-189 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2011-2496 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Ftp
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
Openwall
http://www.openwall.com/lists/oss-security/2011/06/27/2
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=716538
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=982134ba62618c2d69fbbbd166d0a11ee3b7e3d8
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/982134ba62618c2d69fbbbd166d0a11ee3b7e3d8
Patch

Details

CVE ID CVE-2011-2496

Severity Medium

CVSS score 4.9 / 10

CVSS version 2.0

Published 2012-06-13

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-2496?

CVE-2011-2496 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10 . CVE-2011-2496 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-2496?

CVE-2011-2496 has a CVSS score of 4.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2011-2496?

No patch is currently available for CVE-2011-2496. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-2496 actively exploited?

No — CVE-2011-2496 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.