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AUSCERT External Security Bulletin Redistribution
ESB-2021.3069
USN-5076-1: Git vulnerability
14 September 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: git
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-40330
Original Bulletin:
https://ubuntu.com/security/notices/USN-5076-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running git check for an updated version of the software for their
operating system.
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USN-5076-1: Git vulnerability
13 September 2021
Git incorrectly handled certain repository paths.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 ESM
Packages
o git - fast, scalable, distributed revision control system
Details
It was discovered that Git allowed newline characters in
certain repository paths. An attacker could potentially use this issue to
perform
cross-protocol requests.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o git - 1:2.25.1-1ubuntu3.2
Ubuntu 18.04
o git - 1:2.17.1-1ubuntu0.9
Ubuntu 16.04
o git - 1:2.7.4-0ubuntu1.10+esm1
Available with UA Infra or UA Desktop
In general, a standard system update will make all the necessary changes.
References
o CVE-2021-40330
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