All vulnerabilities

Servers and applications

CVE-2018-20102

An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on…

Severity
High 7.5
Published
12 Dec 2018
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
HAProxyServers and applications · cpe:a:haproxy:haproxy
  • Every version up to 1.8.14

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-20102
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-20102