SB2019090448 - Information exposure in Linux kernel

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Main Vulnerability Database SB2019090448

SB2019090448 - Information exposure in Linux kernel

Published: September 4, 2019

Security Bulletin ID SB2019090448
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Information exposure (CVE-ID: CVE-2019-15902)

The vulnerability allows a local user to gain access to sensitive information.

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 2 (correctly ordered) code lines were swapped.


Remediation

Install update from vendor's website.

References