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Fencer Intel
medium 6.8

CVE-2010-2806 json

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 o…

published 2010-08-19 16 y ago modified 2026-06-16 4 mo ago also EUVD-2010-2810

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

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.

Patch / fix

  • freetype freetype 2.4.2
  • apple iphone_os 4.2
  • apple mac_os_x 10.6.5
  • apple tvos 4.1.0
  • freetype Debian 14, Debian 13, Debian 12 2.4.2-1

debian advisories DEBIAN-CVE-2010-2806

  • freetype RHEL 6 2.3.11-6.el6_0.1
  • freetype-demos RHEL 6 2.3.11-6.el6_0.1
  • freetype RHEL 4 2.1.9-17.el4.8
  • freetype RHEL 5 2.2.1-28.el5_5
  • freetype-demos RHEL 4 2.1.9-17.el4.8
  • freetype-demos RHEL 5 2.2.1-28.el5_5
  • freetype-utils RHEL 4 2.1.9-17.el4.8
  • freetype RHEL 3 2.1.4-18.el3

red hat advisories RHSA-2010:0864RHSA-2010:0737RHSA-2010:0736

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-2010-2806 updated cvss 6.8

FreeType: Heap-based buffer overflow by processing FontType42 fonts with negative length of SFNT strings (FT bug #30656)

  • Red Hat Desktop version 3 freetype 2.1.4-18.el3
    fixed: vendor fix RHSA-2010:0736
  • Red Hat Enterprise Linux (v. 5 server) freetype 2.2.1-28.el5_5, freetype-demos 2.2.1-28.el5_5
    fixed: vendor fix RHSA-2010:0737
  • Red Hat Enterprise Linux AS version 3 freetype 2.1.4-18.el3
    fixed: vendor fix RHSA-2010:0736
  • Red Hat Enterprise Linux AS version 4 freetype 2.1.9-17.el4.8, freetype-demos 2.1.9-17.el4.8, freetype-utils 2.1.9-17.el4.8 Red Hat Enterprise Linux Desktop (v. 5 client) freetype 2.2.1-28.el5_5, freetype-demos 2.2.1-28.el5_5
    fixed: vendor fix RHSA-2010:0737
  • Red Hat Enterprise Linux Desktop (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1 Red Hat Enterprise Linux Desktop Optional (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1
    fixed: vendor fix RHSA-2010:0864
  • Red Hat Enterprise Linux Desktop version 4 freetype 2.1.9-17.el4.8, freetype-demos 2.1.9-17.el4.8, freetype-utils 2.1.9-17.el4.8 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) freetype 2.2.1-28.el5_5, freetype-demos 2.2.1-28.el5_5
    fixed: vendor fix RHSA-2010:0737
  • Red Hat Enterprise Linux ES version 3 freetype 2.1.4-18.el3
    fixed: vendor fix RHSA-2010:0736
  • Red Hat Enterprise Linux ES version 4 freetype 2.1.9-17.el4.8, freetype-demos 2.1.9-17.el4.8, freetype-utils 2.1.9-17.el4.8
    fixed: vendor fix RHSA-2010:0737
show 3 more
  • Red Hat Enterprise Linux HPC Node (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1 Red Hat Enterprise Linux Server (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1 Red Hat Enterprise Linux Server Optional (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1 Red Hat Enterprise Linux Workstation (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1 Red Hat Enterprise Linux Workstation Optional (v. 6) freetype 2.3.11-6.el6_0.1, freetype-demos 2.3.11-6.el6_0.1
    fixed: vendor fix RHSA-2010:0864
  • Red Hat Enterprise Linux WS version 3 freetype 2.1.4-18.el3
    fixed: vendor fix RHSA-2010:0736
  • Red Hat Enterprise Linux WS version 4 freetype 2.1.9-17.el4.8, freetype-demos 2.1.9-17.el4.8, freetype-utils 2.1.9-17.el4.8
    fixed: vendor fix RHSA-2010:0737

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

5.84% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • savannah.nongnu.org https://savannah.nongnu.org/bugs/?30656 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

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.