CVE-2023-4255

published 2023-12-21

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…

Priority P4 20 medium 5.5 CVSS 3.1

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

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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
debian	w3m	< w3m 0.5.3+git20230121-2.1 (forky)	w3m 0.5.3+git20230121-2.1 (forky)
fedoraproject	extra_packages_for_enterprise_linux	—	—
fedoraproject	fedora	—	—
tats	w3m	—	—
tats	w3m	—	—
tats	w3m	—	—
tats	w3m	>= 0 < 0.5.3+git20230121-2.1	0.5.3+git20230121-2.1
tats	w3m	>= 0 < 0.5.3+git20230121-2.1	0.5.3+git20230121-2.1

CVSS provenance

nvd v3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

osv 5.5 MEDIUM

vendor_debian 5.5 MEDIUM

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