Buffer overflow in texlive - CVE-2018-17407
Published: October 16, 2018 / Updated: October 17, 2018
Vulnerability identifier: #VU15378
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-17407
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
texlive
texlive
Software vendor:
TeX Users Group
TeX Users Group
Description
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.