CVE-2023-4255mediumCWE-787

CVE-2023-4255: medium-severity vulnerability in w3m

W3m: out-of-bounds write in function checktype() in etc.c (incomplete fix for cve-2022-38223)

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.5epss 0.3%
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
Fedora · Extra Packages for Enterprise LinuxFedora · Fedoran/a · w3m
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