SB2017072416 - Multiple vulnerabilities in FontForge

Description

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2017-11570)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 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

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

FontForge 20161012 is vulnerable to a buffer over-read in umodenc (parsettf.c) resulting in DoS or code execution via a crafted otf file.

2) Out-of-bounds read (CVE-ID: CVE-2017-11573)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 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

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

FontForge 20161012 is vulnerable to a buffer over-read in ValidatePostScriptFontName (parsettf.c) resulting in DoS or code execution via a crafted otf file.

Remediation

Install update from vendor's website.

References

• https://github.com/fontforge/fontforge/issues/3097
• https://github.com/fontforge/fontforge/issues/3098