Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.37 |
| Opensuse | Opensuse | 11.2 |
| Suse | Linux Enterprise Desktop | 11 |
| Suse | Linux Enterprise Real Time Extension | 11 |
| Suse | Linux Enterprise Server | 11 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing ListThird Party Advisory
- http://secunia.com/advisories/42778Third Party Advisory
- http://secunia.com/advisories/42801Third Party Advisory
- http://secunia.com/advisories/42932Third Party Advisory
- http://securityreason.com/securityalert/8111ExploitThird Party Advisory
- http://securityreason.com/securityalert/8123ExploitThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2Broken Link
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:029Third Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/11/12/1Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/11/12/4Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2010-4165?
CVE-2010-4165 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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 (OO...
How severe is CVE-2010-4165?
CVE-2010-4165 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2010-4165?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Opensuse Opensuse, Suse Linux Enterprise Desktop, Suse Linux Enterprise Real Time Extension, Suse Linux Enterprise Server.