National Cyber Awareness System

Vulnerability Summary for CVE-2011-1927

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: https://github.com/torvalds/linux/commit/64f3b9e203bd06855072e295557dca1485a2ecba

Type: Patch Information; Exploit

Hyperlink:https://github.com/torvalds/linux/commit/64f3b9e203bd06855072e295557dca1485a2ecba

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=64f3b9e203bd06855072e295557dca1485a2ecba

Type: Patch Information

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=64f3b9e203bd06855072e295557dca1485a2ecba

External Source: MLIST

Name: [oss-security] 20110518 Re: CVE request: kernel: net: ip_expire() must revalidate route

Hyperlink:http://www.openwall.com/lists/oss-security/2011/05/18/2

External Source: CONFIRM

Name: http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39

Hyperlink:http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39