CVE-2018-6198 — Link Following in W3M

CWE-59 — Link FollowingCWE-377 — Insecure Temporary File12 documents8 sources
Severity
4.7MEDIUMNVD
OSV7.5
EPSS
0.1%
top 75.80%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Tats W3MCanonical Ubuntu Linux
Timeline
PublishedJan 25
Latest updateMay 13

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 vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:NExploitability: 1.0 | Impact: 3.6

Affected Packages3 packages

▶Debiantats/w3m< 0.5.3-36+3
▶Ubuntutats/w3m< 0.5.3-15ubuntu0.2+1
▶NVDtats/w3m0.5.3

Also affects: Ubuntu Linux 12.04, 14.04, 16.04, 17.10

Patches

Patch: bugs.debian.org ↗Patch: github.com ↗Patch: salsa.debian.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-gvrg-2xvq-7j38: w3m through 0↗2022-05-13
▶
OSV
w3m vulnerabilities↗2018-02-01
▶
CVEList
CVE-2018-6198: w3m through 0↗2018-01-25
▶
OSV
CVE-2018-6198: w3m through 0↗2018-01-25
▶

📋Vendor Advisories

4
Ubuntu
w3m vulnerabilities↗2018-02-01
▶
Ubuntu
w3m vulnerabilities↗2018-02-01
▶
Red Hat
w3m: insecure temporary files creation when ~/.w3m is unwritable↗2018-01-23
▶
Debian
CVE-2018-6198: w3m - w3m through 0.5.3 does not properly handle temporary files when the ~/.w3m direc...↗2018
▶

💬Community

3
Bugzilla
CVE-2018-6198 w3m: insecure temporary files creation when ~/.w3m is unwritable [fedora-all]↗2018-01-26
▶
Bugzilla
CVE-2018-6198 w3m: insecure temporary files creation when ~/.w3m is unwritable↗2018-01-26
▶
Bugzilla
CVE-2018-6198 w3m: insecure temporary files creation when ~/.w3m is unwritable [epel-7]↗2018-01-26
▶
CVE-2018-6198 — Link Following in Tats W3M | cvebase