CVE-2010-4160

MEDIUM

Description

Multiple integer overflows in the (1) pppol2tp_sendmsg function in net/l2tp/l2tp_ppp.c, and the (2) l2tp_ip_sendmsg function in net/l2tp/l2tp_ip.c, in the PPPoL2TP and IPoL2TP implementations in the Linux kernel before 2.6.36.2 allow local users to cause a denial of service (heap memory corruption and panic) or possibly gain privileges via a crafted sendto call.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=253eacc070b114c2ec1f81b067d2fed7305467b0

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8acfe468b0384e834a303f08ebc4953d72fb690a

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/2011-01/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html

http://openwall.com/lists/oss-security/2010/11/10/16

http://openwall.com/lists/oss-security/2010/11/10/5

http://openwall.com/lists/oss-security/2010/11/24/12

http://openwall.com/lists/oss-security/2010/11/24/4

http://openwall.com/lists/oss-security/2010/11/24/5

http://openwall.com/lists/oss-security/2010/11/24/6

http://secunia.com/advisories/42801

http://secunia.com/advisories/42890

http://secunia.com/advisories/42932

http://secunia.com/advisories/43056

http://secunia.com/advisories/43291

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2

http://www.redhat.com/support/errata/RHSA-2011-0007.html

http://www.securityfocus.com/bid/44762

http://www.spinics.net/lists/netdev/msg145248.html

http://www.spinics.net/lists/netdev/msg145673.html

http://www.vupen.com/english/advisories/2011/0012

http://www.vupen.com/english/advisories/2011/0124

http://www.vupen.com/english/advisories/2011/0213

http://www.vupen.com/english/advisories/2011/0375

http://xorl.wordpress.com/2010/11/11/cve-2010-4160-linux-kernel-l2tp-integer-overflows/

https://bugzilla.redhat.com/show_bug.cgi?id=651892

Details

Source: MITRE

Published: 2011-01-07

Updated: 2013-01-21

Type: CWE-189

Risk Information

CVSS v2.0

Base Score: 6.9

Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C)

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM