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Issue 913188 link

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Issue metadata

Status: WontFix
Owner:
Closed: Dec 9
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 3
Type: Bug-Security



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CVE-2018-18710 CrOS: Vulnerability reported in Linux kernel

Project Member Reported by vomit.go...@appspot.gserviceaccount.com, Dec 8

Issue description

VOMIT (go/vomit) has received an external vulnerability report for the Linux kernel. 

Advisory: CVE-2018-18710
  Details: http://vomit.googleplex.com/advisory?id=CVE/CVE-2018-18710
  CVSS severity score: 2.1/10.0
  Description:

An issue was discovered in the Linux kernel through 4.19. An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658.



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

 
Cc: wonderfly@google.com zsm@chromium.org
Labels: M-73 Security_Impact-Stable Security_Severity-Low Pri-3
Owner: groeck@chromium.org
Status: WontFix (was: Untriaged)
Upstream commit e4f3aa2e1e6 ("cdrom: fix improper type cast, which can leat to information leak."). Already fixed in chromeos-{4.4, 4,14, 4,19}. Older kernels are prone to information leaks all over the place, thus WontFix there.

Cc: mikewu@google.com

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