PT-2022-10222 · Htmldoc+1 · Htmldoc+1

CVE-2021-33236 · Published 2022-08-15 · Updated 2024-05-06

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 overflow issue exists in the write header function in htmldoc, allowing attackers to cause a denial of service. The issue is related to the /htmldoc/htmldoc/html.cxx file at line 273.

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 access to the write header function to minimize the risk of exploitation.

Exploit

Fix

Related Identifiers

ALT-PU-2022-2627

ALT-PU-2022-2729

CVE-2021-33236

Affected Products

Alt Linux

Htmldoc

References · 7

• 🔥 https://github.com/michaelrsweet/htmldoc/issues/425 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-33236 · Security Note
• https://ubuntu.com/security/CVE-2021-33236 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-33236 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-33236 · Vendor Advisory
• https://github.com/michaelrsweet/htmldoc/commit/a0014be47d614220db111b360fb6170ef6f3937e · Note
• https://t.me/cibsecurity/48181 · Telegram Post