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Bug 617512 (CVE-2017-5970)

Summary: Kernel CVE-2017-5970 Invalid IP options could cause skb->dst drop
Product: Gentoo Security Reporter: Volkan <vBugZilla>
Component: KernelAssignee: Gentoo Kernel Security <security-kernel>
Severity: normal CC: kernel
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Package list:
Runtime testing required: ---

Description Volkan 2017-05-04 18:38:18 UTC
A vulnerability was found in the Linux kernel. A remote attacker that can send packets containing malicious IP options could cause the ipv4_pktinfo_prepare() function to drop/free the dst. This could result in a system crash or possible privilege escalation if the attacker is able to place crafted objects in this dropped location.

Upstream patch:

Comment 1 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-03-25 23:01:20 UTC
Fix in 4.9.11 onward