Loop with Unreachable Exit Condition ('Infinite Loop') Affecting w3m package, versions <0.5.3-36
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-W3M-395447
- published25 Jan 2018
- disclosed25 Jan 2018
Introduced: 25 Jan 2018
CVE-2018-6196 (opens in a new tab)How to fix?
Upgrade Debian:unstable w3m to version 0.5.3-36 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream w3m package and not the w3m package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2018-6196
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6196
- 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
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-6196
- https://usn.ubuntu.com/3555-1/
- https://usn.ubuntu.com/3555-2/