There is an out-of-bounds write in checkType located in etc.c in w3m 0.5.3. It can be triggered by sending a crafted HTML file to the w3m binary. It allows an attacker to cause Denial of Service or possibly have unspecified other impact.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | 1.8 | 5.9 |
Products Affected
| Vendor | Product | Version |
|---|---|---|
| fedoraproject | fedora | 36 |
| fedoraproject | fedora | 37 |
| w3m_project | w3m | 0.5.3 |