Vulnerability CVE-2010-4165


Published: 2010-11-22   Modified: 2012-02-13

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.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Linux Kernel <= 2.6.37 Local Kernel Denial of Service
prdelka
02.03.2011
Med.
Linux Kernel < 2.6.37-rc2 TCP_MAXSEG Kernel Panic DoS
zx2c4
11.03.2011

Type:

CWE-189

(Numeric Errors)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7a1abd08d52fdeddb3e9a5a33f2f15cc6a5674d2
https://bugzilla.redhat.com/show_bug.cgi?id=652508
http://www.vupen.com/english/advisories/2011/0298
http://www.vupen.com/english/advisories/2011/0124
http://www.vupen.com/english/advisories/2011/0012
http://www.spinics.net/lists/netdev/msg146495.html
http://www.spinics.net/lists/netdev/msg146405.html
http://www.securityfocus.com/bid/44830
http://www.osvdb.org/69241
http://www.openwall.com/lists/oss-security/2010/11/12/4
http://www.openwall.com/lists/oss-security/2010/11/12/1
http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2
http://securityreason.com/securityalert/8123
http://securityreason.com/securityalert/8111
http://secunia.com/advisories/42932
http://secunia.com/advisories/42801
http://secunia.com/advisories/42778
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html

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