CVE-2018-20103
HIGH severity · CVSS 7.5 · CWE-835
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25
- http://www.securityfocus.com/bid/106280Advisory
- https://access.redhat.com/errata/RHBA-2019:0326Advisory
- https://access.redhat.com/errata/RHBA-2019:0327Advisory
- 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/Advisory
- http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=58df5aea0a0c926b2238f65908f5e9f83d1cca25