CVE-2018-6196

Name: CVE-2018-6196
Creator: NVD / NIST
Published: 2018-01-25T03:29:00.447+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.99%

Last modified Jun 17, 2026

CVE-2018-6196 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.99% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

2.99%

85.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions
Tats	W3m	<= 0.5.3
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10

References

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92Patch, Third Party Advisory
https://github.com/tats/w3m/issues/88Exploit, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html
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
https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92Patch, Third Party Advisory
https://github.com/tats/w3m/issues/88Exploit, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html
https://usn.ubuntu.com/3555-1/Third Party Advisory
https://usn.ubuntu.com/3555-2/Third Party Advisory

Timeline

Published: Jan 25, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is 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.

How severe is CVE-2018-6196?

Severity scoring for CVE-2018-6196 is pending analysis. The EPSS model estimates a 2.99% probability of exploitation in the next 30 days.

How do I fix CVE-2018-6196?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-6196?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST