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7.5

iOS, macOS and iTunes can be hijacked by malicious fonts

CVE-2015-6992 · published 11 years ago
Summary

Versions of iOS before 9.1, macOS before 10.11.1, and iTunes before 12.3.1 may let a specially crafted font file run unwanted code or crash the device. An attacker could send such a font to a user or host a file online, and if opened it could take control or cause a crash. Update the operating system and iTunes to the latest releases, or apply any offered patches, to protect against this risk.

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
VendorProductAffected versions
apple itunes <= 12.3.0
cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
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
CoreText in Apple iOS before 9.1, OS X before 10.11.1, and iTunes before 12.3.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font...
CoreText in Apple iOS before 9.1, OS X before 10.11.1, and iTunes before 12.3.1 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-2015-6975 and CVE-2015-7017.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.5 High
Exploitation
4% chance of attack within 30 days
Type
CWE-119Buffer Overflow
Timeline
Published23 Oct 2015
Updated23 Oct 2026
First seen29 Sep 2026
Sources
CVE-2015-6992 · NVD
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