CVE-2012-6638
Kernel: net: tcp: potential DoS via SYN+FIN messages
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · December 2, 2011
Updated · November 21, 2025
Description
The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.
Statement
This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 6.4AV:N/AC:L/Au:N/C:P/I:N/A:P
CWE not specified