CVE-2011-2695

Name: CVE-2011-2695
Creator: NVD / NIST
Published: 2011-07-28T22:55:02.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.45%

Last modified Jun 16, 2026

CVE-2011-2695 is a vulnerability of currently unknown severity. Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer.

Metrics

EPSS Probability

0.45%

35.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-193

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 3.0
Linux	Linux Kernel	3.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6
http://secunia.com/advisories/45193Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5Broken Link
http://www.openwall.com/lists/oss-security/2011/07/15/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/07/15/8Mailing List, Third Party Advisory
http://www.spinics.net/lists/linux-ext4/msg25697.htmlExploit, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=722557Issue Tracking, Patch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6
http://secunia.com/advisories/45193Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5Broken Link
http://www.openwall.com/lists/oss-security/2011/07/15/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2011/07/15/8Mailing List, Third Party Advisory
http://www.spinics.net/lists/linux-ext4/msg25697.htmlExploit, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=722557Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jul 28, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-2695?

How severe is CVE-2011-2695?

Severity scoring for CVE-2011-2695 is pending analysis. The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2011-2695?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2695?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST