p PatchFirst

CVE-2018-20102

CVE-2018-20102

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 4.2% · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • haproxy Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.8.15-1

    Update to 1.8.15-1

  • haproxy Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.8.15-1

    Update to 1.8.15-1

  • haproxy Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.8.15-1

    Update to 1.8.15-1

  • haproxy Ubuntu:16.04:LTS

    Versions
    • 1.5.14-1
    • 1.5.15-1
    • 1.6.2-1
    • 1.6.2-2
    • 1.6.2-2ubuntu1
    • 1.6.2-2ubuntu3
    • 1.6.3-1
    • 1.6.3-1ubuntu0.1
    Affected ranges
    • ECOSYSTEM: < 1.6.3-1ubuntu0.2

    Update to 1.6.3-1ubuntu0.2

  • haproxy Ubuntu:18.04:LTS

    Versions
    • 1.7.9-1ubuntu1
    • 1.7.9-1ubuntu2
    • 1.8.4-1
    • 1.8.7-1
    • 1.8.8-1
    • 1.8.8-1ubuntu0.1
    • 1.8.8-1ubuntu0.2
    Affected ranges
    • ECOSYSTEM: < 1.8.8-1ubuntu0.3

    Update to 1.8.8-1ubuntu0.3

Original sources

Check your server →