CVE-2018-20102
HIGH7.5EPSS 0.03%haproxy - security update
Published: 12/12/2018Modified: 4/28/2026
Also known as:DEBIAN-CVE-2018-20102
Description
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 the value of accepted_payload_size.
Affected packages (2)
- Debian/haproxyfrom 0, < 1.8.15-1
- Debian/haproxyfrom 0, < 1.7.5-2+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |