ESB-2021.1396 – [UNIX/Linux][Debian] pjproject: Denial of service – Remote with user interaction

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AUSCERT External Security Bulletin Redistribution

ESB-2021.1396
pjproject security update
26 April 2021

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AusCERT Security Bulletin Summary
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Product: pjproject
Publisher: Debian
Operating System: Debian GNU/Linux
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service — Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-21375

Original Bulletin:
https://lists.debian.org/debian-lts-announce/2021/04/msg00023.html

Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running pjproject check for an updated version of the software for
their operating system.

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Debian LTS Advisory DLA-2636-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Thorsten Alteholz
April 23, 2021 https://wiki.debian.org/LTS
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Package : pjproject
Version : 2.5.5~dfsg-6+deb9u2
CVE ID : CVE-2021-21375

An issue has been found in pjproject, a set of libraries for the PJ
Project.
Due to bad handling of two consecutive crafted answers to an INVITE, the
attacker is able to crash the server resulting in a denial of service.

For Debian 9 stretch, this problem has been fixed in version
2.5.5~dfsg-6+deb9u2.

We recommend that you upgrade your pjproject packages.

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

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

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You have received this e-mail bulletin as a result of your organisation’s
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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.
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