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medium4.9Public exploit code

CVE-2010-4165

The do_tcp_setsockopt function in net/ipv4/tcp.c in the Linux kernel before 2.6.37-rc2 does not properly restrict TCP_MAXSEG (aka MSS) values, which allows loc…

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

The do_tcp_setsockopt function in net/ipv4/tcp.c in the Linux kernel before 2.6.37-rc2 does not properly restrict TCP_MAXSEG (aka MSS) values, which allows local users to cause a denial of service (OOPS) via a setsockopt call that specifies a small value, leading to a divide-by-zero error or incorrect use of a signed integer.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
before 2.6.37
Version 2.6.37
OpensuseOpensuse
Versions 11.2, 11.3
SuseLinux Enterprise Desktop
Version 11
SuseLinux Enterprise Real Time Extension
Version 11
SuseLinux Enterprise Server
Version 11

Weakness classification

CWE-369

References