CVE-2010-4164

Multiple integer underflows in the x25_parse_facilities function in net/x25/x25_facilities.c in the Linux kernel before 2.6.36.2 allow remote attackers to cause a denial of service (system crash) via malformed X.25 (1) X25_FAC_CLASS_A, (2) X25_FAC_CLASS_B, (3) X25_FAC_CLASS_C, or (4) X25_FAC_CLASS_D facility data, a different vulnerability than CVE-2010-3873.

Weakness

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Affected Software

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5ef41308f94dcbb3b7afc56cdef1c2ba53fa5d2f
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html
• http://marc.info/?l=linux-netdev\u0026m=128951543005554\u0026w=2
• http://openwall.com/lists/oss-security/2010/11/11/2
• http://openwall.com/lists/oss-security/2010/11/12/3
• http://secunia.com/advisories/42778
• http://secunia.com/advisories/42801
• http://secunia.com/advisories/42932
• http://secunia.com/advisories/43291
• http://www.debian.org/security/2010/dsa-2126
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
• http://www.securityfocus.com/bid/45055
• http://www.vupen.com/english/advisories/2011/0012
• http://www.vupen.com/english/advisories/2011/0124
• http://www.vupen.com/english/advisories/2011/0298
• http://www.vupen.com/english/advisories/2011/0375
• https://bugzilla.redhat.com/show_bug.cgi?id=652517