Vulnerability in Tats W3m
CVE-2018-6198
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Tats W3m
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.debian.org/888097 (Patch, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/3555-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3555-1/ (vendor-advisory, Third Party Advisory)
- github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753 (Patch, Third Party Advisory)
- salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753 (Patch, Third Party Advisory)
- www.securityfocus.com/bid/102855 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html (vendor-advisory)
Frequently asked questions
- What is CVE-2018-6198?
- CVE-2018-6198 is a medium-severity vulnerability in Tats W3m, classified under Improper Link Resolution Before File Access. CVSS score: 4.7/10. Published 2018-01-25.
- How severe is CVE-2018-6198?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2018-6198 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.