What is CVE-2011-1927?

CVE-2011-1927 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.0 out of 10. CVE-2011-1927 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-1927?

CVE-2011-1927 has a CVSS score of 5.0 out of 10, rated Medium severity. The vector string is AV:N/AC:L/Au:N/C:N/I:N/A:P.

Is there a patch available for CVE-2011-1927?

No patch is currently available for CVE-2011-1927. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-1927 actively exploited?

CVE-2011-1927 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2011-1927

Medium

The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.

Package Linux Kernel

Published 2012-06-13

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

5.0

out of 10

Medium

Attack Vector

Network

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

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

References

The following references provide additional information about CVE-2011-1927 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/2011/05/18/2
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=64f3b9e203bd06855072e295557dca1485a2ecba
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/64f3b9e203bd06855072e295557dca1485a2ecba
Patch

Details

CVE ID CVE-2011-1927

Severity Medium

CVSS score 5.0 / 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-2011-1927?

CVE-2011-1927 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.0 out of 10 . CVE-2011-1927 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-1927?

CVE-2011-1927 has a CVSS score of 5.0 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:N/AC:L/Au:N/C:N/I:N/A:P.
Is there a patch available for CVE-2011-1927?

No patch is currently available for CVE-2011-1927. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-1927 actively exploited?

No — CVE-2011-1927 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.