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Bug 617512 (CVE-2017-5970) - Kernel CVE-2017-5970 Invalid IP options could cause skb->dst drop
Summary: Kernel CVE-2017-5970 Invalid IP options could cause skb->dst drop
Status: RESOLVED FIXED
Alias: CVE-2017-5970
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Kernel Security
URL: https://bugzilla.redhat.com/show_bug....
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-05-04 18:38 UTC by Volkan
Modified: 2022-03-25 23:01 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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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:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b2cef20f19c87999fff3da4071e66937db9644

References:

http://seclists.org/oss-sec/2017/q1/414
https://patchwork.ozlabs.org/patch/724136/
Comment 1 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-03-25 23:01:20 UTC
Fix in 4.9.11 onward