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AUSCERT External Security Bulletin Redistribution
28 November 2018
AusCERT Security Bulletin Summary
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
CVE Names: CVE-2018-19486 CVE-2017-15298
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
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Ubuntu Security Notice USN-3829-1
November 27, 2018
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 18.10
- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
Several security issues were fixed in Git.
- - git: fast, scalable, distributed revision control system
It was discovered that Git incorrectly handled layers of tree objects.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS.
It was discovered that Git incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10.
The problem can be corrected by updating your system to the following package
git - 1:2.19.1-1ubuntu1.1
Ubuntu 18.04 LTS
git - 1:2.17.1-1ubuntu0.4
Ubuntu 16.04 LTS
git - 1:2.7.4-0ubuntu1.6
Ubuntu 14.04 LTS
git - 1:1.9.1-1ubuntu0.10
To update your system, please follow these instructions: https://
In general, a standard system update will make all the necessary changes.
(C) 2017 Canonical Ltd. Ubuntu and Canonical are registered trademarks of
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