CVE-2022-38223: High severity W3m Project W3m vulnerability
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/w3mto a version that resolves this vulnerability.Fixed in 0.5.3+git20230121-2Fixed in 0.5.3+git20230121-2.1Fixed in 0.5.3+git20230121-2.3 - Upgrade
Upgrade
alpine/w3mto a version that resolves this vulnerability.Fixed in 0.5.3.20220429-r3 - Upgrade
Upgrade
alpine/w3mto a version that resolves this vulnerability.Fixed in 0.5.3.20230121-r0 - Upgrade
Upgrade
alpine/w3mto a version that resolves this vulnerability.Fixed in 0.5.3_git20241203-r0 - Upgrade
Upgrade
debian/w3mto a version that resolves this vulnerability.Fixed in 0.5.3+git20230121-1
Event History
Frequently Asked Questions
What is CVE-2022-38223?
CVE-2022-38223 is a vulnerability in w3m 0.5.3 that allows an attacker to trigger an out-of-bounds write in the 'checkType' function, potentially causing a Denial of Service or other unspecified impact.
How can CVE-2022-38223 be triggered?
CVE-2022-38223 can be triggered by sending a crafted HTML file to the w3m binary.
What is the severity of CVE-2022-38223?
CVE-2022-38223 has a severity score of 7.8, which is considered high.
Which software versions are affected by CVE-2022-38223?
The vulnerability affects w3m 0.5.3, as well as Fedora 36 and Fedora 37.
How can I fix CVE-2022-38223?
To fix CVE-2022-38223, update to a version of w3m that is not affected by the vulnerability, and ensure any affected Fedora systems are updated to a patched version.