SB2020120925 - Out-of-bounds read in luajit (Alpine package)



SB2020120925 - Out-of-bounds read in luajit (Alpine package)

Published: December 9, 2020

Security Bulletin ID SB2020120925
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2020-15890)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.


Remediation

Install update from vendor's website.