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Fencer Intel
critical 9.3

CVE-2011-0226 json

Integer signedness error in psaux/t1decode.c in FreeType before 2.4.6, as used in CoreGraphics in Apple iOS before 4.2.9 and 4.3.x before 4…

published 2011-07-19 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0252

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.3%
EPSS 6.3% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Integer signedness error in psaux/t1decode.c in FreeType before 2.4.6, as used in CoreGraphics in Apple iOS before 4.2.9 and 4.3.x before 4.3.4 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted Type 1 font in a PDF document, as exploited in the wild in July 2011.

Patch / fix

  • freetype Debian 14, Debian 13, Debian 12 2.4.6-1

debian advisories DEBIAN-CVE-2011-0226

  • freetype RHEL 6 2.3.11-6.el6_1.6
  • freetype-demos RHEL 6 2.3.11-6.el6_1.6

red hat advisories RHSA-2011:1085

  • ft2demos openSUSE Tumbleweed 2.7-1.1
  • freetype2 openSUSE Tumbleweed 2.7-1.1

opensuse advisories openSUSE-SU-2024:10172-1openSUSE-SU-2024:10438-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-0226 updated cvss 6.8

freetype: postscript type1 font parsing vulnerability

  • Red Hat Enterprise Linux Server (v. 6) freetype 2.3.11-6.el6_1.6 Red Hat Enterprise Linux Server Optional (v. 6) freetype 2.3.11-6.el6_1.6, freetype-demos 2.3.11-6.el6_1.6
    fixed: vendor fix RHSA-2011:1085
  • Red Hat Enterprise Linux 4 freetype Red Hat Enterprise Linux 5 freetype
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.25% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.