Description
ip_nat_pptp in the PPTP NAT helper (netfilter/ip_nat_helper_pptp.c) in Linux kernel 2.6.14, and other versions, allows remote attackers to cause a denial of service (memory corruption or crash) via an inbound PPTP_IN_CALL_REQUEST packet that causes a null pointer to be used in an offset calculation.
References
- ADV-2006-0220 vdb-entry
- 16414 vdb-entry
- 388 third-party-advisory
- 2006-0004 vendor-advisory
- 18482 third-party-advisory
- kernel-pptpincallrequest-dos(24203) vdb-entry
- http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=15db34702cfafd24acc60295cf14861e497502ab