Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2023.4085
libapache2-mod-auth-openidc security update
20 July 2023
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libapache2-mod-auth-openidc
Publisher: Debian
Operating System: Debian GNU/Linux
Resolution: Patch/Upgrade
CVE Names: CVE-2022-23527 CVE-2021-39191
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2023/07/msg00020.html
Comment: CVSS (Max): 6.1 CVE-2022-23527 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- --------------------------BEGIN INCLUDED TEXT--------------------
- -------------------------------------------------------------------------
Debian LTS Advisory DLA-3499-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Guilhem Moulin
July 19, 2023 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------
Package : libapache2-mod-auth-openidc
Version : 2.3.10.2-1+deb10u3
CVE ID : CVE-2021-39191 CVE-2022-23527
Debian Bug : 993648 1026444
Open Redirect vulnerabilities were found in libapache2-mod-auth-openidc,
OpenID Connect Relying Party implementation for Apache, which could lead
to information disclosure via phishing attacks.
CVE-2021-39191
The 3rd-party init SSO functionality of mod_auth_openidc was
reported to be vulnerable to an open redirect attack by supplying a
crafted URL in the target_link_uri parameter.
CVE-2022-23527
When providing a logout parameter to the redirect URI,
mod_auth_openidc failed to properly check for URLs starting with
"/\t", leading to an open redirect.
For Debian 10 buster, these problems have been fixed in version
2.3.10.2-1+deb10u3.
We recommend that you upgrade your libapache2-mod-auth-openidc packages.
For the detailed security status of libapache2-mod-auth-openidc please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libapache2-mod-auth-openidc
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
- -----BEGIN PGP SIGNATURE-----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=5air
- -----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: https://auscert.org.au/gpg-key/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=HqUH
-----END PGP SIGNATURE-----