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.
Affected products
- Linux / Linux kernel2.6.37
- Linux / Linux kernel2.6.37 – 2.6.37
- Linux / Linux kernel2.6.37 – 2.6.37
- openSUSE / opensuse11.2 – 11.2
- openSUSE / opensuse11.3 – 11.3
- SUSE / linux_enterprise_desktop11 – 11
- SUSE / linux_enterprise_real_time_extension11 – 11
- SUSE / linux_enterprise_server11 – 11
References
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/42778
- MISChttp://www.spinics.net/lists/netdev/msg146405.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/42801
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/11/12/4
- MISChttp://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/42932
- MISChttp://www.osvdb.org/69241
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2011/0124
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2011/0298
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- MISChttp://www.securityfocus.com/bid/44830
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=652508
- MISChttp://www.spinics.net/lists/netdev/msg146495.html
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/11/12/1
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2011/0012
- MISChttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7a1abd08d52fdeddb3e9a5a33f2f15cc6a5674d2
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2011:029
- MISChttp://securityreason.com/securityalert/8111
- MISChttp://securityreason.com/securityalert/8123