CVE-2019-11360 — A buffer overflow in iptables-restore in netfilter iptables 1

A buffer overflow in iptables-restore in netfilter iptables 1.8.2 allows an attacker to (at least) crash the program or potentially gain code execution via a specially crafted iptables-save file. This is related to add_param_to_argv in xshared.c.

01What is this vulnerability?

A buffer overflow in iptables-restore in netfilter iptables 1.8.2 allows an attacker to (at least) crash the program or potentially gain code execution via a specially crafted iptables-save file. This is related to add_param_to_argv in xshared.c.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

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: 2019-07-12T14:15:11.733
• Last modified: 2026-10-14T07:16:45.037

09References

• 0day.work — https://0day.work/cve-2019-11360-bufferoverflow-in-iptables-restore-v1-8-2/
• git.netfilter.org — https://git.netfilter.org/iptables/commit/iptables/xshared.c?id=2ae1099a42e6a0f0…
• 0day.work — https://0day.work/cve-2019-11360-bufferoverflow-in-iptables-restore-v1-8-2/
• git.netfilter.org — https://git.netfilter.org/iptables/commit/iptables/xshared.c?id=2ae1099a42e6a0f0…
• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/html/ssa-398330.html