Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.3167
USN-4501-1: LuaJIT vulnerability
17 September 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: LuaJIT
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-15890
Reference: ESB-2020.2574
Original Bulletin:
https://usn.ubuntu.com/4501-1/
- --------------------------BEGIN INCLUDED TEXT--------------------
USN-4501-1: LuaJIT vulnerability
15 September 2020
LuaJIT could be made crash or expose sensitive information if it received
specially crafted input.
Releases
o Ubuntu 16.04 LTS
Packages
o luajit - Just in time compiler for Lua programming language version 5.1
Details
It was discovered that an out-of-bounds read existed in LuaJIT. An
attacker could use this to cause a denial of service (application crash)
or possibly expose sensitive information. (CVE-2020-15890)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 16.04
o libluajit-5.1-2 - 2.0.4+dfsg-1+deb9u1build0.16.04.1
o libluajit-5.1-common - 2.0.4+dfsg-1+deb9u1build0.16.04.1
o libluajit-5.1-dev - 2.0.4+dfsg-1+deb9u1build0.16.04.1
o luajit - 2.0.4+dfsg-1+deb9u1build0.16.04.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-15890
- --------------------------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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=3cnX
-----END PGP SIGNATURE-----