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AUSCERT External Security Bulletin Redistribution
ESB-2020.2065
USN-4315-2: Apport vulnerabilities
16 June 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Apport
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Root Compromise -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-8833 CVE-2020-8831
Reference: ESB-2020.1188
Original Bulletin:
https://usn.ubuntu.com/4315-2/
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USN-4315-2: Apport vulnerabilities
15 June 2020
apport vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 14.04 ESM
Summary
Several security issues were fixed in Apport.
Software Description
o apport - automatically generate crash reports for debugging
Details
USN-4315-1 fixed several vulnerabilities in Apport. This update provides the
corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Maximilien Bourgeteau discovered that the Apport lock file was created with
insecure permissions. This could allow a local attacker to escalate their
privileges via a symlink attack. (CVE-2020-8831)
Maximilien Bourgeteau discovered a race condition in Apport when setting crash
report permissions. This could allow a local attacker to read arbitrary files
via a symlink attack. (CVE-2020-8833)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 14.04 ESM
apport - 2.14.1-0ubuntu3.29+esm4
python-apport - 2.14.1-0ubuntu3.29+esm4
python3-apport - 2.14.1-0ubuntu3.29+esm4
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
In general, a standard system update will make all the necessary changes.
References
o USN-4315-1
o CVE-2020-8831
o CVE-2020-8833
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