Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2021.3002
haproxy security update
8 September 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: haproxy
Publisher: Debian
Operating System: Debian GNU/Linux
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Reduced Security -- Unknown/Unspecified
Resolution: Patch/Upgrade
CVE Names: CVE-2021-40346
Original Bulletin:
https://lists.debian.org/debian-security-announce/2021/msg00153.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running haproxy check for an updated version of the software for
their operating system.
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
- - -------------------------------------------------------------------------
Debian Security Advisory DSA-4968-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
September 07, 2021 https://www.debian.org/security/faq
- - -------------------------------------------------------------------------
Package : haproxy
CVE ID : CVE-2021-40346
Ori Hollander reported that missing header name length checks in the
htx_add_header() and htx_add_trailer() functions in HAProxy, a fast and
reliable load balancing reverse proxy, could result in request smuggling
attacks or response splitting attacks.
Additionally this update addresses #993303 introduced in DSA 4960-1
causing HAProxy to fail serving URLs with HTTP/2 containing '//'.
For the stable distribution (bullseye), this problem has been fixed in
version 2.2.9-2+deb11u2.
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/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
- -----BEGIN PGP SIGNATURE-----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=8IRe
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=NtCT
-----END PGP SIGNATURE-----