Vulnerabilities > CVE-2023-4255 - Out-of-bounds Write vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 3 | |
| Application | 1 | |
| OS | 1 |
Common Weakness Enumeration (CWE)
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/[email protected]/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/