CVE-2018-20102
haproxy - security update
7.5
HIGH
CVSS 3.1
EPSS 0.03%
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.
How to fix CVE-2018-20102
To remediate CVE-2018-20102, upgrade the affected package to a fixed version below.
- —upgrade to 1.8.15-1 or later
- —upgrade to 1.7.5-2+deb9u1 or later
Is CVE-2018-20102 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.8.15-1
- from 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 |