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Out-of-bounds Read Affecting haproxy package, versions <1.8.15-1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.86% (83rd percentile)

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  • Snyk IDSNYK-DEBIAN11-HAPROXY-521018
  • published12 Dec 2018
  • disclosed12 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 12 Dec 2018

CVE-2018-20102  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Debian:11 haproxy to version 1.8.15-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream haproxy package and not the haproxy package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.