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Debian Security Advisory DSA-5388-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
April 13, 2023                        https://www.debian.org/security/faq
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Package        : haproxy
CVE ID         : CVE-2023-0836

It was reported that HAProxy, a fast and reliable load balancing reverse
proxy, does not properly initialize connection buffers when encoding the
FCGI_BEGIN_REQUEST record. A remote attacker can take advantage of this
flaw to cause an information leak.

For the stable distribution (bullseye), this problem has been fixed in
version 2.2.9-2+deb11u5.

We recommend that you upgrade your haproxy packages.

For the detailed security status of haproxy please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/source-package/haproxy

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-5388-1: haproxy security update

April 13, 2023
It was reported that HAProxy, a fast and reliable load balancing reverse proxy, does not properly initialize connection buffers when encoding the FCGI_BEGIN_REQUEST record

Summary

For the stable distribution (bullseye), this problem has been fixed in
version 2.2.9-2+deb11u5.

We recommend that you upgrade your haproxy packages.

For the detailed security status of haproxy please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/source-package/haproxy

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Severity
Package : haproxy
CVE ID : CVE-2023-0836

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