CVE-2011-1927

Severity

50%

Complexity

99%

Confidentiality

48%

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.

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.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

First reported 12 years ago

2012-06-13 10:24:00

Last updated 12 years ago

2012-06-13 10:24:00

Affected Software

Linux Kernel 2.6.38

2.6.38

Linux Kernel 2.6.38 Release Candidate 1

2.6.38

Linux Kernel 2.6.38 Release Candidate 2

2.6.38

Linux Kernel 2.6.38 Release Candidate 3

2.6.38

Linux Kernel 2.6.38 Release Candidate 4

2.6.38

Linux Kernel 2.6.38 Release Candidate 5

2.6.38

Linux Kernel 2.6.38 Release Candidate 6

2.6.38

Linux Kernel 2.6.38 Release Candidate 7

2.6.38

Linux Kernel 2.6.38 Release Candidate 8

2.6.38

Linux Kernel 2.6.38.1

2.6.38.1

Linux Kernel 2.6.38.2

2.6.38.2

Linux Kernel 2.6.38.3

2.6.38.3

Linux Kernel 2.6.38.4

2.6.38.4

Linux Kernel 2.6.38.5

2.6.38.5

Linux Kernel 2.6.38.6

2.6.38.6

Linux Kernel 2.6.38.7

2.6.38.7

Linux Kernel

References

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

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

Patch

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

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

Exploit, Patch

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