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.
Link Following
Severity
MEDIUM
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Atk. Vector
LOCAL
Atk. Complexity
HIGH
Priv. Required
LOW
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
VendorProductVersion
tatsw3m
𝑥
≤ 0.5.3
canonicalubuntu_linux
12.04
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
17.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
w3m
bullseye
0.5.3+git20210102-6+deb11u1
fixed
sid
0.5.3+git20230121-2
fixed
trixie
0.5.3+git20230121-2
fixed
bookworm
0.5.3+git20230121-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
w3m
artful
Fixed 0.5.3-34ubuntu0.1
released
xenial
Fixed 0.5.3-26ubuntu0.2
released
trusty
Fixed 0.5.3-15ubuntu0.2
released
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
http://www.securityfocus.com/bid/102855
https://bugs.debian.org/888097
https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
https://usn.ubuntu.com/3555-1/
https://usn.ubuntu.com/3555-2/
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
http://www.securityfocus.com/bid/102855
https://bugs.debian.org/888097
https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
https://salsa.debian.org/debian/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
https://usn.ubuntu.com/3555-1/
https://usn.ubuntu.com/3555-2/