CVE-2011-1927

2011-05-1800:00:00

ubuntu.com

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.007

Percentile

81.1%

JSON

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.

Bugs

<https://launchpad.net/bugs/922051>

Notes

Author	Note
jdstrand	2.6.38 only?
apw	this report and the fix overlapped with each other commit below was identified as the fix: 64f3b9e203bd06855072e295557dca1485a2ecba

OSVersionArchitecturePackageVersionFilename
ubuntu10.10noarchlinux< 2.6.35-32.66UNKNOWN
ubuntu11.04noarchlinux< 2.6.38-10.44UNKNOWN
ubuntu11.10noarchlinux< 2.6.39-3.9UNKNOWN
ubuntu10.04noarchlinux-lts-backport-maverick< 2.6.35-32.66~lucid1UNKNOWN
ubuntu10.04noarchlinux-lts-backport-natty< 2.6.38-10.44~lucid1UNKNOWN
ubuntu10.04noarchlinux-lts-backport-oneiric< 3.0.0-5.6~lucid1UNKNOWN
ubuntu10.10noarchlinux-ti-omap4< 2.6.35-903.31UNKNOWN
ubuntu11.04noarchlinux-ti-omap4< 2.6.38-1209.22UNKNOWN
ubuntu11.10noarchlinux-ti-omap4< 3.0.0-1200.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	10.10	noarch	linux	< 2.6.35-32.66	UNKNOWN
ubuntu	11.04	noarch	linux	< 2.6.38-10.44	UNKNOWN
ubuntu	11.10	noarch	linux	< 2.6.39-3.9	UNKNOWN
ubuntu	10.04	noarch	linux-lts-backport-maverick	< 2.6.35-32.66~lucid1	UNKNOWN
ubuntu	10.04	noarch	linux-lts-backport-natty	< 2.6.38-10.44~lucid1	UNKNOWN
ubuntu	10.04	noarch	linux-lts-backport-oneiric	< 3.0.0-5.6~lucid1	UNKNOWN
ubuntu	10.10	noarch	linux-ti-omap4	< 2.6.35-903.31	UNKNOWN
ubuntu	11.04	noarch	linux-ti-omap4	< 2.6.38-1209.22	UNKNOWN
ubuntu	11.10	noarch	linux-ti-omap4	< 3.0.0-1200.1	UNKNOWN