CVE-2021-43579

Publication date 10 January 2022

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Description

A stack-based buffer overflow in image_load_bmp() in HTMLDOC <= 1.9.13 results in remote code execution if the victim converts an HTML document linking to a crafted BMP file.

Status

Package Ubuntu Release Status
htmldoc 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic Ignored end of life, was needs-triage
22.04 LTS jammy
Not affected
21.10 impish Ignored end of life
21.04 hirsute Ignored end of life
20.04 LTS focal
Fixed 1.9.7-1ubuntu0.3+esm1
18.04 LTS bionic
Fixed 1.9.2-1ubuntu0.2+esm1
16.04 LTS xenial
Fixed 1.8.27-8ubuntu1.1+esm2
14.04 LTS trusty
Fixed 1.8.27-8ubuntu1+esm3

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Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-7189-1
    • HTMLDOC vulnerabilities
    • 8 January 2025

Other references