CVE-2022-38223
highpriority · track · 31EPSS 0.005 · 41 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (25)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-38223/cnnvd
- https://github.com/tats/w3m/issues/242cnnvd
- https://lists.debian.org/debian-lts-announce/2023/08/msg00030.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKESIFZMWIFMI6DRGMUYOTVKBOSEKDXZ/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NRRZMTLG3YT6U3PSGJOAMLDNLRF2EUOP/cnnvd
- https://packetstormsecurity.com/files/170439/Ubuntu-Security-Notice-USN-5796-2.htmlcnnvd
- https://vigilance.fr/vulnerability/w3m-buffer-overflow-via-checkType-40212cnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.0119cnnvd
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