CVE-2022-38223

· HIGHModified

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CVSS v3.1

7.8

EPSS

0.45%

Published

Aug 15, 2022

Modified

Nov 4, 2025

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

There is an out-of-bounds write in checkType located in etc.c in w3m 0.5.3. It can be triggered by sending a crafted HTML file to the w3m binary. It allows an attacker to cause Denial of Service or possibly have unspecified other impact.

CVSS Vector

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

Weaknesses (CWE)

CWE-787

Affected Products (3)

tats · w3mvulnerable

fedoraproject · fedoravulnerable

References (16)

https://github.com/tats/w3m/issues/242

ExploitIssue TrackingThird Party Advisory

https://lists.debian.org/debian-lts-announce/2023/08/msg00030.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MKESIFZMWIFMI6DRGMUYOTVKBOSEKDXZ/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NRRZMTLG3YT6U3PSGJOAMLDNLRF2EUOP/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/