Ubuntu Security Notice 3829-1 - 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. Various other issues were also addressed.
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Ubuntu Security Notice USN-3829-1
November 27, 2018
git vulnerabilities
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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
Summary:
Several security issues were fixed in Git.
Software Description:
- git: fast, scalable, distributed revision control system
Details:
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.
(CVE-2017-15298)
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.
(CVE-2018-19486)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
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
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3829-1
CVE-2017-15298, CVE-2018-19486
Package Information:
https://launchpad.net/ubuntu/+source/git/1:2.19.1-1ubuntu1.1
https://launchpad.net/ubuntu/+source/git/1:2.17.1-1ubuntu0.4
https://launchpad.net/ubuntu/+source/git/1:2.7.4-0ubuntu1.6
https://launchpad.net/ubuntu/+source/git/1:1.9.1-1ubuntu0.10