Description
The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does not properly validate certain values associated with an interface, which allows attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via vectors related to a routing change.
References
- [oss-security] 20100623 kernel: l2tp: Fix oops in pppol2tp_xmit mailing-list
- USN-1000-1 vendor-advisory
- [oss-security] 20100704 Re: CVE Request: kernel: l2tp: Fix oops in pppol2tp_xmit mailing-list
- SUSE-SA:2010:033 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3feec9095d12e311b7d4eb7fe7e5dfa75d4a72a5
- https://bugzilla.redhat.com/show_bug.cgi?id=607054
- [oss-security] 20100706 Re: CVE Request: kernel: l2tp: Fix oops in pppol2tp_xmit mailing-list
- [oss-security] 20100704 Re: kernel: l2tp: Fix oops in pppol2tp_xmit mailing-list
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34