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Issue 902687 link

Starred by 1 user
Status: WontFix
Owner:
zsm@chromium.org
Closed: Nov 7
Cc:
wonderfly@google.com
groeck@chromium.org
chromeos-kernel-security-bug-access@google.com
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 2
Type: Bug-Security



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CVE-2018-10938 CrOS: Vulnerability reported in Linux kernel

Project Member Reported by vomit.go...@appspot.gserviceaccount.com, Nov 7 
VOMIT (go/vomit) has received an external vulnerability report for the Linux kernel. 

Advisory: CVE-2018-10938
  Details: http://vomit.googleplex.com/advisory?id=CVE/CVE-2018-10938
  CVSS severity score: 7.1/10.0
  Description:

A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw.



This bug was filed by http://go/vomit
Please contact us at vomit-team@google.com if you need any assistance.

Comment 1 by zsm@chromium.org, Nov 7

Owner: zsm@chromium.org
Status: Assigned (was: Untriaged)

Comment 2 by zsm@chromium.org, Nov 7

Cc: groeck@chromium.org wonderfly@google.com
Labels: Security_Severity-High Security_Impact-None Pri-2
Status: WontFix (was: Assigned)
Upstream commit is 40413955ee265("Cipso: cipso_v4_optptr enter infinite loop")
This commit is present in chromeos-4.19, v4.14, v4.4. Older kernels do not have this commit.

CONFIG_NETLABEL is not set in any of our kernels, marking as Wontfix.
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