The tpacket_rcv function in net/packet/af_packet.c in the Linux kernel before...

Vulnerability Description

The tpacket_rcv function in net/packet/af_packet.c in the Linux kernel before 4.13 mishandles vnet headers, which might allow local users to cause a denial of service (buffer overflow, and disk and memory corruption) or possibly have unspecified other impact via crafted system calls.

References

• https://marc.info/?l=linux-kernel&m=150394500728906&w=2
• https://bugzilla.redhat.com/show_bug.cgi?id=1492593
• http://seclists.org/oss-sec/2017/q3/476
• http://www.securitytracker.com/id/1039371
• http://www.securityfocus.com/bid/100871
• https://source.android.com/security/bulletin/2018-01-01
• http://www.debian.org/security/2017/dsa-3981
• https://github.com/torvalds/linux/commit/edbd58be15a957f6a760c4a514cd475217eb97fd
• https://marc.info/?t=150394517700001&r=1&w=2
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=edbd58be15a957f6a760c4a514cd475217eb97fd
• http://www.securitytracker.com/id/1040106