SB2020070124 - Amazon Linux AMI update for texlive
Published: July 1, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2018-17407)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to buffer overflow when handling of Type 1 fonts by the t1_check_unusual_charstring functions, as defined in the writet1.c source code file. A remote unauthenticated attacker can trick the victim into loading a file that submits malicious Type 1 fonts to the targeted system with the pdflatex, pdftex, dvips, or luatex tools, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.