CVE-2018-20549

Publication date 28 December 2018

Last updated 25 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

There is an illegal WRITE memory access at caca/file.c (function caca_file_read) in libcaca 0.99.beta19.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libcaca	18.10 cosmic	Fixed 0.99.beta19-2ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 0.99.beta19-2ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 0.99.beta19-2ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 0.99.beta18-1ubuntu5.1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libcaca	Upstream: 3e52dab

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.8 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	8.8 · High
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-3860-1
libcaca vulnerabilities
15 January 2019

USN-3860-2
libcaca vulnerabilities
15 January 2019

Other references

Access our resources on patching vulnerabilities