CVE-2011-1927

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.

Score

CVSS 2.0 5.0 Medium

Status

Modified - secalert@redhat.com

Published

2012-06-13

Last modified

2024-08-06

Affected products

• Linux Kernel (Linux)

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%3Ba=commit%3Bh=64f3b9e203bd06855072e295557dca1485a2ecba
• http://www.openwall.com/lists/oss-security/2011/05/18/2
• https://github.com/torvalds/linux/commit/64f3b9e203bd06855072e295557dca1485a2ecba