CVE-2023-4255
Medium
Description
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Tats W3m
PublishedDec 21, 2023
First seenDec 21, 2023
Weakness typeCWE-787Out-of-bounds write
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tats w3m | 0.5.3\+git20230121-1, 0.5.3\+git20230121-2, 0.5.3\+git20230129 | — |
| fedoraproject extra_packages_for_enterprise_linux | 8.0 | — |
| fedoraproject fedora | 39 | — |
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