Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2023.0072
USN-5784-1: usbredir vulnerability
4 January 2023
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: usbredir
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3700
Original Bulletin:
https://ubuntu.com/security/notices/USN-5784-1
Comment: CVSS (Max): 6.4 CVE-2021-3700 (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- --------------------------BEGIN INCLUDED TEXT--------------------
USN-5784-1: usbredir vulnerability
3 January 2023
usbredir could be made to crash or run programs if it received
specially crafted input.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o usbredir - usbredir libraries and utilities
Details
It was discovered that usbredir incorrectly handled memory when
serializing large amounts of data in the case of a slow or blocked
destination. An attacker could possibly use this issue to cause
applications using usbredir to crash, resulting in a denial of
service, or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o usbredirserver - 0.8.0-1ubuntu0.1
o libusbredirhost1 - 0.8.0-1ubuntu0.1
o libusbredirparser1 - 0.8.0-1ubuntu0.1
Ubuntu 18.04
o usbredirserver - 0.7.1-1ubuntu0.18.04.1
o libusbredirhost1 - 0.7.1-1ubuntu0.18.04.1
o libusbredirparser1 - 0.7.1-1ubuntu0.18.04.1
Ubuntu 16.04
o usbredirserver - 0.7.1-1ubuntu0.16.04.1~esm1
Available with Ubuntu Pro (Infra-only)
o libusbredirhost1 - 0.7.1-1ubuntu0.16.04.1~esm1
Available with Ubuntu Pro (Infra-only)
o libusbredirparser1 - 0.7.1-1ubuntu0.16.04.1~esm1
Available with Ubuntu Pro (Infra-only)
Ubuntu 14.04
o usbredirserver - 0.6-2ubuntu1.1+esm1
Available with Ubuntu Pro (Infra-only)
o libusbredirhost1 - 0.6-2ubuntu1.1+esm1
Available with Ubuntu Pro (Infra-only)
o libusbredirparser1 - 0.6-2ubuntu1.1+esm1
Available with Ubuntu Pro (Infra-only)
In general, a standard system update will make all the necessary changes.
References
o CVE-2021-3700
- --------------------------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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=Q9Kj
-----END PGP SIGNATURE-----