N/A - USN-3398-1

Executive Summary

Summary
Title	graphite2 vulnerabilities

Informations
Name	USN-3398-1	First vendor Publication	2017-08-21
Vendor	Ubuntu	Last vendor Modification	2017-08-21
Severity (Vendor)	N/A	Revision	N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score	NA
Base Score	NA	Environmental Score	NA
impact SubScore	NA	Temporal Score	NA
Exploitabality Sub Score	NA

Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score	N/A	Attack Range	N/A
Cvss Impact Score	N/A	Attack Complexity	N/A
Cvss Expoit Score	N/A	Authentication	N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

graphite2 could be made to crash or run programs if it opened a specially crafted font.

Software Description: - graphite2: Font rendering engine for Complex Scripts

Details:

Holger Fuhrmannek and Tyson Smith discovered that graphite2 incorrectly handled certain malformed fonts. If a user or automated system were tricked into opening a specially-crafted font file, a remote attacker could use this issue to cause graphite2 to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 17.04:
libgraphite2-3 1.3.10-0ubuntu0.17.04.1

Ubuntu 16.04 LTS:
libgraphite2-3 1.3.10-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
libgraphite2-3 1.3.10-0ubuntu0.14.04.1

This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to restart applications using graphite2, such as LibreOffice, to make all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3398-1
CVE-2017-7771, CVE-2017-7772, CVE-2017-7773, CVE-2017-7774,
CVE-2017-7775, CVE-2017-7776, CVE-2017-7777, CVE-2017-7778

Package Information:
https://launchpad.net/ubuntu/+source/graphite2/1.3.10-0ubuntu0.17.04.1
https://launchpad.net/ubuntu/+source/graphite2/1.3.10-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/graphite2/1.3.10-0ubuntu0.14.04.1