Buffer overflow in the ft_var_readpackedpoints function in truetype/ttgxvar.c in FreeType 2.4.3 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted TrueType GX font.

Specially crafted font files could crash applications that use freetype2 to render the fonts (CVE-2010-3814, CVE-2010-3855).

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0889 advisory.

    - Add freetype-2.3.11-CVE-2010-3855.patch         (Protect against invalid runcnt values.)
    - Add freetype-2.3.11-CVE-2010-2805.patch         (Fix comparison.)
    - Add freetype-2.3.11-CVE-2010-2806.patch         (Protect against negative string_size. Fix comparison.)
    - Add freetype-2.3.11-CVE-2010-2808.patch         (Check the total length of collected POST segments.)
    - Add freetype-2.3.11-CVE-2010-3311.patch         (Dont seek behind end of stream.)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

A heap-based buffer overflow flaw was found in the way the FreeType font rendering engine processed certain TrueType GX fonts. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3855)

Note: This issue only affects the FreeType 2 font engine.

The X server must be restarted (log out, then log back in) for this update to take effect.

The remote host is affected by the vulnerability described in GLSA-201201-09 (FreeType: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in FreeType. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to open a specially crafted font,       possibly resulting in the remote execution of arbitrary code with the       privileges of the user running the application, or a Denial of Service.
  Workaround :

    There is no known workaround at this time.

Specially crafted font files could crash applications that use freetype2 to render the fonts. (CVE-2010-3814 / CVE-2010-3855)

The remote mobile host is a using a version of Apple iOS earlier than 4.3.4. Such versions are potentially affected by multiple vulnerabilities. Apple iOS 4.3.4 contains security fixes for the following components :

  - CoreGraphics

  - IOMobileFrameBuffer

The remote host is running a version of Mac OS X 10.6.x that is prior to 10.6.7.

Mac OS X 10.6.7 contains security fixes for the following products :

  - AirPort
  - Apache
  - AppleScript
  - ATS
  - bzip2
  - CarbonCore
  - ClamAV
  - CoreText
  - File Quarantine
  - HFS
  - ImageIO
  - Image RAW
  - Installer
  - Kerberos
  - Kernel
  - Libinfo
  - libxml
  - Mailman
  - PHP
  - QuickLook
  - QuickTime
  - Ruby
  - Samba
  - Subversion
  - Terminal
  - X11

The remote host is running a version of Mac OS X 10.5 that does not have Security Update 2011-001 applied. 

This security update contains fixes for the following products :

  - Apache
  - bzip2
  - ClamAV
  - ImageIO
  - Kerberos
  - Libinfo
  - libxml
  - Mailman
  - PHP
  - QuickLook
  - Ruby
  - X11

Versions of Mac OS X 10.6 earlier than 10.6.7 are potentially affected by a security issue.  Mac OS X 10.6.7 contains a security fix for the following products :

  - Airport

  - Apache

  - AppleScript

  - ATS

  - bzip2

  - CarbonCore

  - ClamAV

  - CoreText

  - HFS

  - ImageIO

  - Image RAW

  - Installer

  - Kerberos

  - Kernel

  - Libinfo

  - libxml

  - Mailman

  - PHP

  - QuickLook

  - QuickTime

  - Ruby

  - Samba

  - Subversion

  - Terminal

  - X11

The remote mobile host is a using a version of Apple iOS earlier than 4.3. Such versions are potentially affected by multiple vulnerabilities. Apple iOS 4.3 contains security fixes for the following components :

  - CoreGraphics

  - ImageIO

  - libxml

  - Networking

  - Safari

  - WebKit

  - Wi-Fi

Two buffer overflows were found in the Freetype font library, which could lead to the execution of arbitrary code.

Updated freetype packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. The freetype packages for Red Hat Enterprise Linux 4 provide both the FreeType 1 and FreeType 2 font engines. The freetype packages for Red Hat Enterprise Linux 5 and 6 provide only the FreeType 2 font engine.

A heap-based buffer overflow flaw was found in the way the FreeType font rendering engine processed certain TrueType GX fonts. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3855)

Note: This issue only affects the FreeType 2 font engine.

Users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The X server must be restarted (log out, then log back in) for this update to take effect.

- Mon Nov 15 2010 Marek Kasik <mkasik at redhat.com>     2.3.11-7

    - Add freetype-2.3.11-CVE-2010-3855.patch (Protect       against invalid `runcnt' values.)

  - Resolves: #651764

    - Mon Oct 4 2010 Marek Kasik <mkasik at redhat.com>       2.3.11-6

    - Add freetype-2.3.11-CVE-2010-2805.patch (Fix       comparison.)

  - Add freetype-2.3.11-CVE-2010-2806.patch (Protect against     negative string_size. Fix comparison.)

  - Add freetype-2.3.11-CVE-2010-2808.patch (Check the total     length of collected POST segments.)

  - Add freetype-2.3.11-CVE-2010-3311.patch (Don't seek     behind end of stream.)

  - Resolves: #638522

    - Mon Oct 4 2010 Marek Kasik <mkasik at redhat.com>       2.3.11-5

    - Add freetype-2.3.11-CVE-2010-1797.patch (Check stack       after execution of operations too. Skip the       evaluations of the values in decoder, if       cff_decoder_parse_charstrings() returns any error.)

  - Resolves: #621627

    - Fri Oct 1 2010 Marek Kasik <mkasik at redhat.com>       2.3.11-4

    - Add freetype-2.3.11-CVE-2010-2498.patch (Assure that       `end_point' is not larger than `glyph->num_points')

  - Add freetype-2.3.11-CVE-2010-2499.patch (Check the     buffer size during gathering PFB fragments)

  - Add freetype-2.3.11-CVE-2010-2500.patch (Use smaller     threshold values for `width' and `height')

  - Add freetype-2.3.11-CVE-2010-2519.patch (Check `rlen'     the length of fragment declared in the POST fragment     header)

  - Add freetype-2.3.11-CVE-2010-2520.patch (Fix bounds     check)

  - Add freetype-2.3.11-CVE-2010-2527.patch (Use precision     for `%s' where appropriate to avoid buffer overflows)

  - Add freetype-2.3.11-CVE-2010-2541.patch (Avoid overflow     when dealing with names of axes)

  - Resolves: #613299

    - Thu Dec 3 2009 Behdad Esfahbod <behdad at redhat.com>       2.3.11-3

    - Add freetype-2.3.11-more-demos.patch

    - New demo programs ftmemchk, ftpatchk, and fttimer

    - Thu Dec 3 2009 Behdad Esfahbod <behdad at redhat.com>       2.3.11-2

    - Second try. Drop upstreamed patches.

    - Thu Dec 3 2009 Behdad Esfahbod <behdad at redhat.com>       2.3.11-1

    - 2.3.11

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

- Mon Nov 15 2010 Marek Kasik <mkasik at redhat.com>     2.3.11-7

    - Add freetype-2.3.11-CVE-2010-3855.patch (Protect       against invalid `runcnt' values.)

  - Resolves: #651764

    - Mon Oct 4 2010 Marek Kasik <mkasik at redhat.com>       2.3.11-6

    - Add freetype-2.3.11-CVE-2010-2805.patch (Fix       comparison.)

  - Add freetype-2.3.11-CVE-2010-2806.patch (Protect against     negative string_size. Fix comparison.)

  - Add freetype-2.3.11-CVE-2010-2808.patch (Check the total     length of collected POST segments.)

  - Add freetype-2.3.11-CVE-2010-3311.patch (Don't seek     behind end of stream.)

  - Resolves: #638522

    - Mon Oct 4 2010 Marek Kasik <mkasik at redhat.com>       2.3.11-5

    - Add freetype-2.3.11-CVE-2010-1797.patch (Check stack       after execution of operations too. Skip the       evaluations of the values in decoder, if       cff_decoder_parse_charstrings() returns any error.)

  - Resolves: #621627

    - Fri Oct 1 2010 Marek Kasik <mkasik at redhat.com>       2.3.11-4

    - Add freetype-2.3.11-CVE-2010-2498.patch (Assure that       `end_point' is not larger than `glyph->num_points')

  - Add freetype-2.3.11-CVE-2010-2499.patch (Check the     buffer size during gathering PFB fragments)

  - Add freetype-2.3.11-CVE-2010-2500.patch (Use smaller     threshold values for `width' and `height')

  - Add freetype-2.3.11-CVE-2010-2519.patch (Check `rlen'     the length of fragment declared in the POST fragment     header)

  - Add freetype-2.3.11-CVE-2010-2520.patch (Fix bounds     check)

  - Add freetype-2.3.11-CVE-2010-2527.patch (Use precision     for `%s' where appropriate to avoid buffer overflows)

  - Add freetype-2.3.11-CVE-2010-2541.patch (Avoid overflow     when dealing with names of axes)

  - Resolves: #613299

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2010:0889 advisory.

    FreeType is a free, high-quality, portable font engine that can open and     manage font files. It also loads, hints, and renders individual glyphs     efficiently. The freetype packages for Red Hat Enterprise Linux 4 provide     both the FreeType 1 and FreeType 2 font engines. The freetype packages for     Red Hat Enterprise Linux 5 and 6 provide only the FreeType 2 font engine.

    A heap-based buffer overflow flaw was found in the way the FreeType font     rendering engine processed certain TrueType GX fonts. If a user loaded a     specially-crafted font file with an application linked against FreeType, it     could cause the application to crash or, possibly, execute arbitrary code     with the privileges of the user running the application. (CVE-2010-3855)

    Note: This issue only affects the FreeType 2 font engine.

    Users are advised to upgrade to these updated packages, which contain a     backported patch to correct this issue. The X server must be restarted (log     out, then log back in) for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

- Mon Nov 15 2010 Marek Kasik <mkasik at redhat.com>     2.4.2-4

    - Add freetype-2.4.2-CVE-2010-3855.patch (Protect       against invalid `runcnt' values.)

  - Resolves: #651764

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple vulnerabilities were discovered and corrected in freetype2 :

An error within the 'Ins_SHZ()' function in src/truetype/ttinterp.c when handling the 'SHZ' bytecode instruction can be exploited to cause a crash and potentially execute arbitrary code via a specially crafted font (CVE-2010-3814).

An error exists in the 'ft_var_readpackedpoints()' function in src/truetype/ttgxvar.c when processing TrueType GX fonts and can be exploited to cause a heap-based buffer overflow via a specially crafted font (CVE-2010-3855).

Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&amp;products_id=4 90

The updated packages have been patched to correct these issues.

Marc Schoenefeld discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges. This issue only affected Ubuntu 6.06 LTS, 8.04 LTS, 9.10 and 10.04 LTS.
(CVE-2010-3311)

Chris Evans discovered that FreeType did not correctly handle certain malformed TrueType font files. If a user were tricked into using a specially crafted TrueType file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges. This issue only affected Ubuntu 8.04 LTS, 9.10, 10.04 LTS and 10.10. (CVE-2010-3814)

It was discovered that FreeType did not correctly handle certain malformed TrueType font files. If a user were tricked into using a specially crafted TrueType file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges. (CVE-2010-3855).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
75505	openSUSE Security Update : freetype2 (openSUSE-SU-2011:0361-1)	Nessus	SuSE Local Security Checks	medium
68142	Oracle Linux 5 / 6 : freetype (ELSA-2010-0889)	Nessus	Oracle Linux Local Security Checks	high
60898	Scientific Linux Security Update : freetype on SL4.x, SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
57651	GLSA-201201-09 : FreeType: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
57197	SuSE 10 Security Update : freetype2 (ZYPP Patch Number 7399)	Nessus	SuSE Local Security Checks	medium
5986	Apple iOS < 4.3.4 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	high
53723	openSUSE Security Update : freetype2 (openSUSE-SU-2011:0361-1)	Nessus	SuSE Local Security Checks	medium
53487	SuSE 10 Security Update : freetype2 (ZYPP Patch Number 7366)	Nessus	SuSE Local Security Checks	medium
53313	SuSE 11.1 Security Update : freetype2 (SAT Patch Number 4089)	Nessus	SuSE Local Security Checks	medium
52754	Mac OS X 10.6.x < 10.6.7 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	high
52753	Mac OS X Multiple Vulnerabilities (Security Update 2011-001)	Nessus	MacOS X Local Security Checks	high
5826	Mac OS X 10.6 < 10.6.7 Multiple Vulnerabilities	Nessus Network Monitor	Generic	critical
5814	Apple iOS < 4.3 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	critical
51828	Debian DSA-2155-1 : freetype - several vulnerabilities	Nessus	Debian Local Security Checks	medium
50808	CentOS 4 / 5 : freetype (CESA-2010:0889)	Nessus	CentOS Local Security Checks	medium
50672	Fedora 12 : freetype-2.3.11-7.fc12 (2010-17755)	Nessus	Fedora Local Security Checks	medium
50670	Fedora 13 : freetype-2.3.11-7.fc13 (2010-17728)	Nessus	Fedora Local Security Checks	medium
50620	RHEL 6 : freetype (RHSA-2010:0889)	Nessus	Red Hat Local Security Checks	critical
50619	Fedora 14 : freetype-2.4.2-4.fc14 (2010-17742)	Nessus	Fedora Local Security Checks	medium
50608	Mandriva Linux Security Advisory : freetype2 (MDVSA-2010:236)	Nessus	Mandriva Local Security Checks	medium
50491	Ubuntu 6.06 LTS / 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : freetype vulnerabilities (USN-1013-1)	Nessus	Ubuntu Local Security Checks	high

Detections

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CVE-2010-3855

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