CVE-2018-6196

w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.
Infinite Loop
Severity
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Atk. Vector
NETWORK
Atk. Complexity
LOW
Priv. Required
NONE
Base Score
CVSS 3.x
EPSS Score
Percentile: 81%
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
wheezy
no-dsa
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
https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92
https://github.com/tats/w3m/issues/88
https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html
https://usn.ubuntu.com/3555-1/
https://usn.ubuntu.com/3555-2/
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92
https://github.com/tats/w3m/issues/88
https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html
https://usn.ubuntu.com/3555-1/
https://usn.ubuntu.com/3555-2/