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AUSCERT External Security Bulletin Redistribution
ESB-2020.3294
USN-4539-1: AWL vulnerability
25 September 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: awl
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-11728
Reference: ESB-2020.1391
ESB-2020.1367
Original Bulletin:
https://usn.ubuntu.com/4539-1/
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running check for an updated version of the software for their
operating system.
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USN-4539-1: AWL vulnerability
24 September 2020
DAViCal Andrew's Web Libraries could be made to run programs as your login
if it received specially crafted input.
Releases
o Ubuntu 20.04 LTS
Packages
o awl - PHP Utility Libraries
Details
Andrew Bartlett discovered that DAViCal Andrew's Web Libraries (AWL) did
not properly manage session keys. An attacker could possibly use this
issue to impersonate a session. (CVE-2020-11728)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o libawl-php - 0.60-1+deb10u1ubuntu1
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-11728
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