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USN-3671-1: Git vulnerabilities

5 June 2018

Several security issues were fixed in Git.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

Packages

  • git - fast, scalable, distributed revision control system

Details

Etienne Stalmans discovered that git did not properly validate git
submodules files. A remote attacker could possibly use this to craft a
git repo that causes arbitrary code execution when "git clone
--recurse-submodules" is used. (CVE-2018-11235)

It was discovered that an integer overflow existed in git's pathname
consistency checking code when used on NTFS filesystems. An attacker could
use this to cause a denial of service or expose sensitive information.
(CVE-2018-11233)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04
Ubuntu 17.10
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.