Link Following Affecting w3m package, versions <0.5.3.20180125-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE321-W3M-8489752
- published6 Dec 2024
- disclosed25 Jan 2018
Introduced: 25 Jan 2018
CVE-2018-6198 (opens in a new tab)How to fix?
Upgrade Alpine:3.21 w3m to version 0.5.3.20180125-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream w3m package and not the w3m package as distributed by Alpine.
See How to fix? for Alpine:3.21 relevant fixed versions and status.
w3m through 0.5.3 does not properly handle temporary files when the ~/.w3m directory is unwritable, which allows a local attacker to craft a symlink attack to overwrite arbitrary files.
References
- https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6198
- https://bugs.debian.org/888097
- https://security-tracker.debian.org/tracker/CVE-2018-6198
- https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
- http://www.securityfocus.com/bid/102855
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-6198
- https://usn.ubuntu.com/3555-1/
- https://usn.ubuntu.com/3555-2/