What’s Vulnerable › Vulnerabilities

CVE-2010-2806

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-08-19 · updated 2026-06-16
• Weakness: CWE-129

Description

Array index error in the t42_parse_sfnts function in type42/t42parse.c in FreeType before 2.4.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via negative size values for certain strings in FontType42 font files, leading to a heap-based buffer overflow.

Affected products

• Apple Iphone Os: before 4.2 — fixed in 4.2
• macOS: before 10.6.5 — fixed in 10.6.5
• Apple tvOS: before 4.1.0 — fixed in 4.1.0
• Canonical Ubuntu Linux: 6.06, 8.04, 9.04, 9.10, 10.04
• FreeType: before 2.4.2 — fixed in 2.4.2

How to fix

Upgrade to a fixed version: Apple Iphone Os 4.2; macOS 10.6.5; Apple tvOS 4.1.0; FreeType 2.4.2. Check the vendor advisory for mitigations.

References

• http://freetype.sourceforge.net/index2.html#release-freetype-2.4.2
• http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=c06da1ad34663da7b6fc39b030dc3ae185b96557
• http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
• http://lists.apple.com/archives/security-announce/2010//Nov/msg00003.html
• http://marc.info/?l=oss-security&m=128111955616772&w=2
• http://secunia.com/advisories/40816
• http://secunia.com/advisories/40982
• http://secunia.com/advisories/42314
• http://secunia.com/advisories/42317
• http://sourceforge.net/projects/freetype/files/freetype2/2.4.2/NEWS/view
• http://support.apple.com/kb/HT4435
• http://support.apple.com/kb/HT4456

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