Vulnerability Description
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.
CVSS Score
4.7
MEDIUM
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tats | W3M | <= 0.5.3 |
| Canonical | Ubuntu Linux | 12.04 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
- http://www.securityfocus.com/bid/102855Third Party AdvisoryVDB Entry
- https://bugs.debian.org/888097Issue TrackingPatchThird Party Advisory
- https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753PatchThird Party Advisory
- https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242PatchThird Party Advisory
- https://usn.ubuntu.com/3555-1/Third Party Advisory
- https://usn.ubuntu.com/3555-2/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
- http://www.securityfocus.com/bid/102855Third Party AdvisoryVDB Entry
- https://bugs.debian.org/888097Issue TrackingPatchThird Party Advisory
- https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753PatchThird Party Advisory
- https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242PatchThird Party Advisory
- https://usn.ubuntu.com/3555-1/Third Party Advisory
- https://usn.ubuntu.com/3555-2/Third Party Advisory
FAQ
What is CVE-2018-6198?
CVE-2018-6198 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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.
How severe is CVE-2018-6198?
CVE-2018-6198 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-6198?
Check the references section above for vendor advisories and patch information. Affected products include: Tats W3M, Canonical Ubuntu Linux.