CVE-2015-8787

The nf_nat_redirect_ipv4 function in net/netfilter/nf_nat_redirect.c in the Linux kernel before 4.4 allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by sending certain IPv4 packets to an incompletely configured interface, a related issue to CVE-2003-1604.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Potential Mitigations

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=94f9cd81436c85d8c3a318ba92e236ede73752fc
• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html
• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
• http://www.openwall.com/lists/oss-security/2016/01/27/6
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
• http://www.ubuntu.com/usn/USN-2889-1
• http://www.ubuntu.com/usn/USN-2889-2
• http://www.ubuntu.com/usn/USN-2890-1
• http://www.ubuntu.com/usn/USN-2890-2
• http://www.ubuntu.com/usn/USN-2890-3
• https://bugzilla.redhat.com/show_bug.cgi?id=1300731
• https://github.com/torvalds/linux/commit/94f9cd81436c85d8c3a318ba92e236ede73752fc