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Debian DSA-4577-1 : haproxy - security update

critical Nessus Plugin ID 131438

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Synopsis

The remote Debian host is missing a security-related update.

Description

Tim Dusterhus discovered that haproxy, a TCP/HTTP reverse proxy, did not properly sanitize HTTP headers when converting from HTTP/2 to HTTP/1. This would allow a remote user to perform CRLF injections.

Solution

Upgrade the haproxy packages.

For the stable distribution (buster), this problem has been fixed in version 1.8.19-1+deb10u1.

See Also

https://security-tracker.debian.org/tracker/source-package/haproxy

https://packages.debian.org/source/buster/haproxy

https://www.debian.org/security/2019/dsa-4577

Plugin Details

Severity: Critical

ID: 131438

File Name: debian_DSA-4577.nasl

Version: 1.4

Type: local

Agent: unix

Published: 12/3/2019

Updated: 12/18/2019

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-19330

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:haproxy

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/28/2019

Vulnerability Publication Date: 11/27/2019

Reference Information

CVE: CVE-2019-19330

DSA: 4577