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AUSCERT External Security Bulletin Redistribution
ESB-2022.4696
USN-5625-1: Mako vulnerability
23 September 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Mako
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2022-40023
Original Bulletin:
https://ubuntu.com/security/notices/USN-5625-1
Comment: CVSS (Max): 7.5 CVE-2022-40023 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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USN-5625-1: Mako vulnerability
21 September 2022
Mako could be made to denial of service if it received a
specially crafted regular expression.
Releases
o Ubuntu 22.04 LTS
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 ESM
Packages
o mako - fast and lightweight templating for the Python platform
Details
It was discovered that Mako incorrectly handled certain regular expressions.
An attacker could possibly use this issue to cause a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 22.04
o python3-mako - 1.1.3+ds1-2ubuntu0.1
Ubuntu 20.04
o python-mako - 1.1.0+ds1-1ubuntu2.1
o python3-mako - 1.1.0+ds1-1ubuntu2.1
Ubuntu 18.04
o python-mako - 1.0.7+ds1-1ubuntu0.2
o python3-mako - 1.0.7+ds1-1ubuntu0.2
Ubuntu 16.04
o python-mako - 1.0.3+ds1-1ubuntu1+esm1
Available with UA Infra or UA Desktop
o python3-mako - 1.0.3+ds1-1ubuntu1+esm1
Available with UA Infra or UA Desktop
In general, a standard system update will make all the necessary changes.
References
o CVE-2022-40023
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