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Bug#: 118693
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Status: RESOLVED
Resolution: FIXED
Assigned To: Gentoo Security <security@gentoo.org>
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Reporter: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org>
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Description:   Opened: 2006-01-11 12:44 0000 
CVE-2006-0036

http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=15db34702cfafd24acc60295cf14861e497502ab

[NETFILTER]: Fix crash in ip_nat_pptp

When an inbound PPTP_IN_CALL_REQUEST packet is received the
PPTP NAT helper uses a NULL pointer in pointer arithmentic to
calculate the offset in the packet which needs to be mangled
and corrupts random memory or crashes.

CVE-2006-0037

http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=03b9feca89366952ae5dfe4ad8107b1ece50b710

[NETFILTER]: Fix another crash in ip_nat_pptp

The PPTP NAT helper calculates the offset at which the packet needs
to be mangled as difference between two pointers to the header. With
non-linear skbs however the pointers may point to two seperate buffers
on the stack and the calculation results in a wrong offset beeing
used.

------- Comment #1 From Kerin Millar 2006-01-12 12:14:46 0000 ------- 
Fixed in:

* genpatches-2.6.14-9 patchset
* genpatches-2.6.15-2 patchset
* hardened-sources-2.6.14-r4

------- Comment #2 From Tim Yamin (RETIRED) 2006-01-15 05:44:43 0000 ------- 
CCing maintainers:

gentoo-sources-2.6: dsd
hppa-sources-2.6: GMSoft
mips-sources-2.6.1[34]: `Kumba
rsbac-sources-2.6: kang
usermode-sources-2.6: kern-sec
xbox-sources-2.6: gimli

------- Comment #3 From Daniel Drake 2006-01-21 15:40:50 0000 ------- 
usermode and gentoo include 2.6.15.1

------- Comment #4 From Tim Yamin (RETIRED) 2006-04-15 12:42:13 0000 ------- 
All fixed, resolving bug.
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