Heap-based buffer overflow in FreeType - CVE-2020-15999
Published: October 20, 2020 / Updated: August 23, 2021
Vulnerability identifier: #VU47741
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2020-15999
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: freetype.org
Affected software:
FreeType
FreeType
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in freetype library when processing TTF files. A remote attacker can pass specially crafted TTF file with PNG sbit glyphs to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note, this vulnerability is being actively exploited in the wild.
How to mitigate CVE-2020-15999
Install updates from vendor's website.