What’s Vulnerable › Vulnerabilities

CVE-2021-43579

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-10 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Debian Linux: 9.0
• htmldoc: through 1.9.13

References

• https://github.com/michaelrsweet/htmldoc/commit/27d08989a5a567155d506ac870ae7d8cc88fa58b
• https://github.com/michaelrsweet/htmldoc/compare/v1.9.12...v1.9.13
• https://github.com/michaelrsweet/htmldoc/issues/453
• https://github.com/michaelrsweet/htmldoc/issues/456
• https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html
• https://github.com/michaelrsweet/htmldoc/commit/27d08989a5a567155d506ac870ae7d8cc88fa58b
• https://github.com/michaelrsweet/htmldoc/compare/v1.9.12...v1.9.13
• https://github.com/michaelrsweet/htmldoc/issues/453
• https://github.com/michaelrsweet/htmldoc/issues/456
• https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html

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