CVE-2011-1927

Name: CVE-2011-1927
Creator: NVD / NIST
Published: 2012-06-13T10:24:54.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.59%

Last modified Jun 16, 2026

CVE-2011-1927 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.59% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

2.59%

83.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 2.6.38.8
Linux	Linux Kernel	2.6.38
Linux	Linux Kernel	2.6.38.1
Linux	Linux Kernel	2.6.38.2
Linux	Linux Kernel	2.6.38.3
Linux	Linux Kernel	2.6.38.4
Linux	Linux Kernel	2.6.38.5
Linux	Linux Kernel	2.6.38.6
Linux	Linux Kernel	2.6.38.7

References

Timeline

Published: Jun 13, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-1927?

How severe is CVE-2011-1927?

Severity scoring for CVE-2011-1927 is pending analysis. The EPSS model estimates a 2.59% probability of exploitation in the next 30 days.

How do I fix CVE-2011-1927?

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-2011-1927?

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

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Source: NVD / NIST