VULNERABILITY INTELLIGENCE
CVE-2011-1927
CVSS score5 MEDIUM
EPSS probability2.59%
CISA KEVNot currently listed
Published2012-06-13
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
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.