Vulnerability Monitor

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CVE-2023-4255

An out-of-bounds write issue has been discovered in the backspace handling of the checkType() function in etc.c within the W3M application. This vulnerability is triggered by supplying a specially crafted HTML file to the w3m binary. Exploitation of this flaw could lead to application crashes, resulting in a denial of service condition.

Published

2023-12-21T16:15:10.017

Last Modified

2024-11-21T08:34:44.253

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses

Type: Secondary
CWE-787
Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	tats	w3m	0.5.3\+git20230121-1	Yes
Application	tats	w3m	0.5.3\+git20230121-2	Yes
Application	tats	w3m	0.5.3\+git20230129	Yes
Application	fedoraproject	extra_packages_for_enterprise_linux	8.0	Yes
Operating System	fedoraproject	fedora	39	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=2255207 Issue Tracking, Third Party Advisory ([email protected])
https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3 Patch ([email protected])
https://github.com/tats/w3m/issues/268 Exploit, Issue Tracking, Patch ([email protected])
https://github.com/tats/w3m/pull/273 Issue Tracking, Patch ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/ ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/ ([email protected])
https://lists.fedoraproject.org/archives/list/[email protected]/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/ ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2255207 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/tats/w3m/issues/268 Exploit, Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/tats/w3m/pull/273 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/[email protected]/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/ (af854a3a-2127-422b-91ae-364da2661108)