Improper Input Validation Affecting haproxy package, versions <0:1.8.15-6.el8_1.1


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.75% (91st percentile)

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  • Snyk IDSNYK-RHEL8-HAPROXY-3670856
  • published26 Jul 2021
  • disclosed2 Apr 2020

Introduced: 2 Apr 2020

CVE-2020-11100  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:8 haproxy to version 0:1.8.15-6.el8_1.1 or higher.
This issue was patched in RHSA-2020:1288.

NVD Description

Note: Versions mentioned in the description apply only to the upstream haproxy package and not the haproxy package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.

CVSS Scores

version 3.1