NULL Pointer Dereference Affecting nagios4 package, versions <4.3.4-3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-DEBIAN12-NAGIOS4-1554669
- published22 Jul 2018
- disclosed12 Jul 2018
Introduced: 12 Jul 2018
CVE-2018-13457 (opens in a new tab)How to fix?
Upgrade Debian:12 nagios4 to version 4.3.4-3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nagios4 package and not the nagios4 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
qh_echo in Nagios Core 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attackers to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.
References
- https://security-tracker.debian.org/tracker/CVE-2018-13457
- https://knowledge.opsview.com/v5.3/docs/whats-new
- https://knowledge.opsview.com/v5.4/docs/whats-new
- https://www.exploit-db.com/exploits/45082/
- https://gist.github.com/fakhrizulkifli/87cf1c1ad403b4d40a86d90c9c9bf7ab
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00022.html
- https://www.exploit-db.com/exploits/45082