USN-3671-1: Git vulnerabilities

5 June 2018

git vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.04 LTS
  • Ubuntu 17.10
  • 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

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 sanity 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)

Update instructions

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

Ubuntu 18.04 LTS
git - 1:2.17.1-1ubuntu0.1
Ubuntu 17.10
git - 1:2.14.1-1ubuntu4.1
Ubuntu 16.04 LTS
git - 1:2.7.4-0ubuntu1.4
Ubuntu 14.04 LTS
git - 1:1.9.1-1ubuntu0.8

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References