SB2019112042 - Division by zero in libcaca (Alpine package)



SB2019112042 - Division by zero in libcaca (Alpine package)

Published: November 20, 2019

Security Bulletin ID SB2019112042
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) Division by zero (CVE-ID: CVE-2018-20544)

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

There is floating point exception at caca/dither.c (function caca_dither_bitmap) in libcaca 0.99.beta19.


Remediation

Install update from vendor's website.