SARA / Free Tools / CVE / CVE-2018-6197

CVE-2018-6197 — w3m through 0

w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c.

CVSS

— —

EPSS

1.15% (top 21.70%)

CWE

—

Published

2018-01-25T03:00:00.000Z

Last modified

2024-08-05T05:54:53.143Z

CVSS vector

—

01What is this vulnerability?

w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c.

Vendor	Product	Versions
n	a / n/a	n/a

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

www.securityfocus.com — http://www.securityfocus.com/bid/102846
usn.ubuntu.com — https://usn.ubuntu.com/3555-2/
github.com — https://github.com/tats/w3m/issues/89
usn.ubuntu.com — https://usn.ubuntu.com/3555-1/
github.com — https://github.com/tats/w3m/commit/7fdc83b0364005a0b5ed869230dd81752ba022e8
lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.