Resource Exhaustion Affecting haproxy18 package, versions *
Threat Intelligence
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-RHEL10-HAPROXY18-11365035
- published2 Aug 2025
- disclosed12 Dec 2018
Introduced: 12 Dec 2018
CVE-2018-20103 (opens in a new tab)How to fix?
There is no fixed version for RHEL:10 haproxy18.
NVD Description
Note: Versions mentioned in the description apply only to the upstream haproxy18 package and not the haproxy18 package as distributed by RHEL.
See How to fix? for RHEL:10 relevant fixed versions and status.
An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted packet can trigger infinite recursion by making the pointer point to itself, or create a long chain of valid pointers resulting in stack exhaustion.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1658876
- https://access.redhat.com/security/cve/CVE-2018-20103
- http://git.haproxy.org/?p=haproxy.git;a=commit;h=58df5aea0a0c926b2238f65908f5e9f83d1cca25
- http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25
- http://www.securityfocus.com/bid/106280
- https://access.redhat.com/errata/RHBA-2019:0326
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2019:1436
- https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html
- https://usn.ubuntu.com/3858-1/