CVE-2019-15902

 

Published at: - 04-09-2019 08:15

Last modified: - 26-10-2022 02:02

Total changes: - 2

Description

A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream "x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://grsecurity.net/teardown_of_a_failed_linux_lts_spectre_fix.php
• openSUSE-SU-2019:2173-Third Party Advisory
• openSUSE-SU-2019:2181-Third Party Advisory
• DSA-4531-Third Party Advisory
• 20190925 [SECURITY] [DSA 4531-1] linux security update-Mailing List, Third Party Advisory
• [debian-lts-announce] 20191001 [SECURITY] [DLA 1940-1] linux-4.9 security update-Third Party Advisory
• https://security.netapp.com/advisory/ntap-20191004-0001/
• USN-4157-1-
• USN-4157-2-
• USN-4162-1-
• USN-4163-1-
• USN-4163-2-
• USN-4162-2-

 

Keywords

NVD

 

CVE-2019-15902

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures