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.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Modified - secalert@redhat.com
- Published
- 2023-12-21
- Last modified
- 2025-02-13
- Weaknesses
- CWE-787
Affected products
- Extra Packages For Enterprise Linux (Fedora)
- Fedora (Fedora)
- Extra Packages For Enterprise Linux (Fedoraproject)
- Fedora (Fedoraproject)
- W3m (Tats)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2255207
- https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3
- https://github.com/tats/w3m/issues/268
- https://github.com/tats/w3m/pull/273
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL…
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWI…
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5…
