CVE-2017-15126

 

Published at: - 14-01-2018 07:29

Last modified: - 19-01-2023 05:08

Total changes: - 2

Description

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6
• https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252
• https://bugzilla.redhat.com/show_bug.cgi?id=1523481
• https://access.redhat.com/security/cve/CVE-2017-15126
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252
• RHSA-2018:1062-Third Party Advisory
• RHSA-2018:0676-Third Party Advisory
• 102516-Third Party Advisory, VDB Entry

 

Keywords

NVD

 

CVE-2017-15126

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures