PT-2021-23032 · Htmldoc+5 · Htmldoc+5

Kaka201 · Published 2021-11-03 · Updated 2025-01-08 · CVE-2021-40985

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions htmldoc versions prior to 1.9.12

Description A buffer under-read vulnerability in the image load bmp function allows attackers to cause a denial of service via a crafted BMP image. This issue affects htmldoc and can be exploited by providing a specially designed image to the vulnerable function.

Recommendations For versions prior to 1.9.12, update to version 1.9.12 or later to resolve the issue. As a temporary workaround, consider restricting the use of BMP images or disabling the image load bmp function until a patch is available.

Exploit

Fix

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2022-2627

ALT-PU-2022-2729

CVE-2021-40985

DLA-2928-1

MGASA-2022-0014

OPENSUSE-SU-2022_0043-1

OPENSUSE-SU-2022_0088-1

OPENSUSE-SU-2024:11611-1

ROSA-SA-2024-2399

SUSE-SU-2021:14869-1

USN-7189-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Suse

Ubuntu

Htmldoc

References · 36

• 🔥 https://github.com/michaelrsweet/htmldoc/issues/444 · Exploit
• https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43 · Patch
• https://ubuntu.com/security/CVE-2021-34119 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40985 · Security Note
• https://ubuntu.com/security/CVE-2021-20308 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11611-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2928-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-40985 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-23206 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-40985 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7189-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-26252 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-40985 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-34121 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7189-1 · Vendor Advisory