CVE-2019-16165 — GNU cflow through 1

GNU cflow through 1.6 has a use-after-free in the reference function in parser.c.

01What is this vulnerability?

GNU cflow through 1.6 has a use-after-free in the reference function in parser.c.

02Affected products

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

03Active exploitation status

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

04Recommended remediation

• 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.

05Technical details

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

06Detection signatures

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

07Related CVEs

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

08Timeline

• Published: 2019-09-09T15:37:49.000Z
• Last modified: 2024-08-05T01:10:41.621Z

09References

• lists.gnu.org — https://lists.gnu.org/archive/html/bug-cflow/2019-04/msg00001.html