#VU27553 Buffer overflow in FontForge - CVE-2019-15785

Vulnerability identifier: #VU27553

Vulnerability risk: High

CVSSv4.0: 6.1 [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-2019-15785

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FontForge
Web applications / Modules and components for CMS

Vendor: fontforge.org

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary in PrefsUI_LoadPrefs in prefs.c. A remote attacker can create a specially crafted file, trick the victim into opening it with the affected software, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FontForge: 20190813 - 20190820

---

External links
https://github.com/fontforge/fontforge/commit/626f751752875a0ddd74b9e217b6f4828713573c
https://github.com/fontforge/fontforge/pull/3886
https://security.gentoo.org/glsa/202004-14

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.