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    CVE-2006-0747

    Integer underflow in Freetype before 2.2 allows remote attackers to cause a denial of service (crash) via a font file with an odd number of blue values, which causes the underflow when decrementing by 2 in a context that assumes an even number of values.

    Published:May 15, 2006
    Last Modified:Apr 16, 2026
    EPS:May 23, 2006
    EPSS Score:0.45933
    CVSS Score:5

    Affected Products

    Vendor
    Freetype
    Product
    Freetype
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://www.exploit-db.com/exploits/27992

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-50811 (CVSS 6.5) — An out-of-bounds read vulnerability exists in FreeType 2.14.3 and versions before commit 5a280ecde6f324de0d226…
    CVE-2026-23865 (CVSS 5.3) — An integer overflow in the tt_var_load_item_variation_store function of the Freetype library in versions 2.13.…
    CVE-2025-27363 (CVSS 8.1) — An out of bounds write exists in FreeType versions 2.13.0 and below (newer versions of FreeType are not vulner…
    CVE-2025-23022 (CVSS 4) — FreeType 2.8.1 has a signed integer overflow in cf2_doFlex in cff/cf2intrp.c.…
    CVE-2022-27404 (CVSS 9.8) — FreeType commit 1e2eb65048f75c64b68708efed6ce904c31f3b2f was discovered to contain a heap buffer overflow via …
    CVE-2022-27406 (CVSS 7.5) — FreeType commit 22a0cccb4d9d002f33c1ba7a4b36812c7d4f46b5 was discovered to contain a segmentation violation vi…
    CVE-2022-27405 (CVSS 7.5) — FreeType commit 53dfdcd8198d2b3201a23c4bad9190519ba918db was discovered to contain a segmentation violation vi…
    CVE-2020-15999 (CVSS 9.6) — Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentia…
    CVE-2015-9381 (CVSS 8.8) — FreeType before 2.6.1 has a heap-based buffer over-read in T1_Get_Private_Dict in type1/t1parse.c.…
    CVE-2015-9382 (CVSS 6.5) — FreeType before 2.6.1 has a buffer over-read in skip_comment in psaux/psobjs.c because ps_parser_skip_PS_token…

    References

    ftp://patches.sgi.com/support/free/security/advisories/20060701-01-U
    http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
    http://lists.suse.com/archive/suse-security-announce/2006-Jun/0012.html
    http://secunia.com/advisories/20525
    http://secunia.com/advisories/20591
    http://secunia.com/advisories/20638
    http://secunia.com/advisories/20791
    http://secunia.com/advisories/21062
    http://secunia.com/advisories/21135
    http://secunia.com/advisories/21385
    http://secunia.com/advisories/21701
    http://secunia.com/advisories/23939
    http://secunia.com/advisories/35074
    http://securitytracker.com/id?1016522
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102705-1
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2006-176.htm
    http://www.debian.org/security/2006/dsa-1095
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:099
    http://www.redhat.com/support/errata/RHSA-2006-0500.html
    http://www.securityfocus.com/archive/1/436836/100/0/threaded
    http://www.securityfocus.com/bid/18326
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vupen.com/english/advisories/2007/0381
    http://www.vupen.com/english/advisories/2009/1297
    https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=183676
    https://issues.rpath.com/browse/RPL-429
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9508
    https://usn.ubuntu.com/291-1/
    ftp://patches.sgi.com/support/free/security/advisories/20060701-01-U
    http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
    http://lists.suse.com/archive/suse-security-announce/2006-Jun/0012.html
    http://secunia.com/advisories/20525
    http://secunia.com/advisories/20591
    http://secunia.com/advisories/20638
    http://secunia.com/advisories/20791
    http://secunia.com/advisories/21062
    http://secunia.com/advisories/21135
    http://secunia.com/advisories/21385
    http://secunia.com/advisories/21701
    http://secunia.com/advisories/23939
    http://secunia.com/advisories/35074
    http://securitytracker.com/id?1016522
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102705-1
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2006-176.htm
    http://www.debian.org/security/2006/dsa-1095
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:099
    http://www.redhat.com/support/errata/RHSA-2006-0500.html
    http://www.securityfocus.com/archive/1/436836/100/0/threaded
    http://www.securityfocus.com/bid/18326
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vupen.com/english/advisories/2007/0381
    http://www.vupen.com/english/advisories/2009/1297
    https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=183676
    https://issues.rpath.com/browse/RPL-429
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9508
    https://usn.ubuntu.com/291-1/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High