CVE-2018-20103

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-835

Affected software

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

References

http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25
http://www.securityfocus.com/bid/106280Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHBA-2019:0326Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
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/Third Party Advisory
http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25
http://www.securityfocus.com/bid/106280Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHBA-2019:0326Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
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/Third Party Advisory

Timeline

Published: Dec 12, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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