Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.

CVE-2015-6993: iOS and macOS FontParser can run malicious code

CVE-2015-6993 · published 11 years ago

Summary

The FontParser component in iPhone operating system versions prior to 9.1 and Mac OS X versions prior to 10.11.1 can be tricked by a specially crafted font file. This can cause the device to crash or allow an attacker to run their own code. Install the latest OS updates from Apple to fix the problem.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
apple	iphone_os	<= 9.0.2 `cpe:2.3:o:apple:iphone_os::::::::`
apple	mac_os_x	<= 10.11.0 `cpe:2.3:o:apple:mac_os_x::::::::`

Original advisory text

FontParser in Apple iOS before 9.1 and OS X before 10.11.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font file, a different vulnerability than CVE-2015-6976, CVE-2015-6977, CVE-2015-6978, CVE-2015-6990, CVE-2015-6991, CVE-2015-7008, CVE-2015-7009, CVE-2015-7010, and CVE-2015-7018.

References

http://lists.apple.com/archives/security-announce/2015/Oct/msg00002.html Vendor Advisory
http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html Vendor Advisory
http://www.securityfocus.com/bid/77263
http://www.securitytracker.com/id/1033929
https://support.apple.com/HT205370 Vendor Advisory
https://support.apple.com/HT205375 Vendor Advisory

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker partial control (estimated)

Severity

6.8 Medium

Exploitation

3% chance of attack within 30 days

Type

CWE-119Buffer Overflow

Timeline

Published23 Oct 2015

Updated31 Oct 2026

First seen29 Sep 2026

Sources

CVE-2015-6993 · NVD

Track software like this

Free during beta