Buffer over-read in fontforge (Ubuntu package) - CVE-2017-11575
Published: September 5, 2017
Vulnerability identifier: #VU8107
CSH Severity: High
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:U/U:Amber
CVE-ID: CVE-2017-11575
CWE-ID: CWE-126
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Canonical Ltd.
Affected software:
fontforge (Ubuntu package)
fontforge (Ubuntu package)
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The weakness exists due to buffer over-read in strnmatch (char.c). A remote attacker can trick the victim into opening a specially crafted otf file, trigger call from the readttfcopyrights function in parsettf.c. and cause the application to crash or execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to buffer over-read in strnmatch (char.c). A remote attacker can trick the victim into opening a specially crafted otf file, trigger call from the readttfcopyrights function in parsettf.c. and cause the application to crash or execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2017-11575
Update to the latest version.