CVE-2018-20102

N/A
Published: December 12, 2018 at 05:00 PM UTC
Updated: June 17, 2026 at 01:52 AM UTC
3 products affected across 3 vendorsUbuntu LinuxOpenShift Container PlatformHAProxy

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Severity
N/A
Exploit prediction
EPSS 4%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (7)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/106223
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHBA-2019:0326
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHBA-2019:0327
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3858-1/

CVSS

Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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