Integer overflow in base/ftstream.c in libXft (aka the X FreeType library) in FreeType before 2.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted Compact Font Format (CFF) font file that triggers a heap-based buffer overflow, related to an "input stream position error" issue, a different vulnerability than CVE-2010-1797.

When loading specially crafted font files applications linked against freetype2 could crash or potentially even execute arbitrary code (CVE-2010-3311, CVE-2010-3053, CVE-2010-3054).

From Red Hat Security Advisory 2010:0737 :

Updated freetype packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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 provide only the FreeType 2 font engine.

It was discovered that the FreeType font rendering engine improperly validated certain position values when processing input streams. If a user loaded a specially crafted font file with an application linked against FreeType, and the relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could trigger a heap-based buffer overflow in the libXft library, causing the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3311)

A stack-based buffer overflow flaw was found in the way the FreeType font rendering engine processed some PostScript Type 1 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-2010-2808)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. 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-2010-2806)

A stack overflow flaw was found in the way the FreeType font rendering engine processed PostScript Type 1 font files that contain nested Standard Encoding Accented Character (seac) calls. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash. (CVE-2010-3054)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

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

From Red Hat Security Advisory 2010:0736 :

Updated freetype packages that fix three security issues are now available for Red Hat Enterprise Linux 3.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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 3 provide both the FreeType 1 and FreeType 2 font engines.

It was discovered that the FreeType font rendering engine improperly validated certain position values when processing input streams. If a user loaded a specially crafted font file with an application linked against FreeType, and the relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could trigger a heap-based buffer overflow in the libXft library, causing the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3311)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. 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-2010-2806)

A stack overflow flaw was found in the way the FreeType font rendering engine processed PostScript Type 1 font files that contain nested Standard Encoding Accented Character (seac) calls. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash. (CVE-2010-3054)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

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

It was found that the FreeType font rendering engine improperly validated certain position values when processing input streams. 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-2010-2805, CVE-2010-3311)

A stack-based buffer overflow flaw was found in the way the FreeType font rendering engine processed some PostScript Type 1 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-2010-2808)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. 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-2010-2806)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

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

It was discovered that the FreeType font rendering engine improperly validated certain position values when processing input streams. If a user loaded a specially crafted font file with an application linked against FreeType, and the relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could trigger a heap-based buffer overflow in the libXft library, causing the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3311)

A stack-based buffer overflow flaw was found in the way the FreeType font rendering engine processed some PostScript Type 1 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-2010-2808) (SLF4 and SLF5 only)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. 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-2010-2806)

A stack overflow flaw was found in the way the FreeType font rendering engine processed PostScript Type 1 font files that contain nested Standard Encoding Accented Character (seac) calls. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash. (CVE-2010-3054)

Note: All of the issues in this erratum only affect 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.

When loading specially crafted font files applications linked against freetype2 could crash or potentially even execute arbitrary code (CVE-2010-3311 / CVE-2010-3053 / CVE-2010-3054). This has been fixed.

Updated freetype packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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. These packages provide the FreeType 2 font engine.

It was found that the FreeType font rendering engine improperly validated certain position values when processing input streams. 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-2010-2805, CVE-2010-3311)

A stack-based buffer overflow flaw was found in the way the FreeType font rendering engine processed some PostScript Type 1 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-2010-2808)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. 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-2010-2806)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

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

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.

- 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 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.

A vulnerability was discovered and corrected in freetype2 :

Marc Schoenefeld found an input stream position error in the way FreeType font rendering engine processed input file streams. If a user loaded a specially crafted font file with an application linked against FreeType and relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could cause the application to crash or, possibly execute arbitrary code (integer overflow leading to heap-based buffer overflow in the libXft library) with the privileges of the user running the application. Different vulnerability than CVE-2010-1797 (CVE-2010-3311).

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 this issue.

- Bug #623625 - CVE-2010-3311 freetype: Input stream     position error by processing Compact Font Format (CFF)     font files

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.

When loading specially crafted font files applications linked against freetype2 could crash or potentially even execute arbitrary code (CVE-2010-3311, CVE-2010-3053, CVE-2010-3054). This has been fixed.

Marc Schoenefeld has found an input stream position error in the way the FreeType font rendering engine processed input file streams. If a user loaded a specially crafted font file with an application linked against FreeType and relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could cause the application to crash or, possibly execute arbitrary code.

Updated freetype packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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 provide only the FreeType 2 font engine.

It was discovered that the FreeType font rendering engine improperly validated certain position values when processing input streams. If a user loaded a specially crafted font file with an application linked against FreeType, and the relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could trigger a heap-based buffer overflow in the libXft library, causing the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3311)

A stack-based buffer overflow flaw was found in the way the FreeType font rendering engine processed some PostScript Type 1 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-2010-2808)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. 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-2010-2806)

A stack overflow flaw was found in the way the FreeType font rendering engine processed PostScript Type 1 font files that contain nested Standard Encoding Accented Character (seac) calls. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash. (CVE-2010-3054)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

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

Updated freetype packages that fix three security issues are now available for Red Hat Enterprise Linux 3.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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 3 provide both the FreeType 1 and FreeType 2 font engines.

It was discovered that the FreeType font rendering engine improperly validated certain position values when processing input streams. If a user loaded a specially crafted font file with an application linked against FreeType, and the relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could trigger a heap-based buffer overflow in the libXft library, causing the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3311)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. 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-2010-2806)

A stack overflow flaw was found in the way the FreeType font rendering engine processed PostScript Type 1 font files that contain nested Standard Encoding Accented Character (seac) calls. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash. (CVE-2010-3054)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

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

ID	Name	Product	Family	Severity
75504	openSUSE Security Update : freetype2 (openSUSE-SU-2010:0726-1)	Nessus	SuSE Local Security Checks	high
68108	Oracle Linux 4 / 5 : freetype (ELSA-2010-0737)	Nessus	Oracle Linux Local Security Checks	high
68107	Oracle Linux 3 : freetype (ELSA-2010-0736)	Nessus	Oracle Linux Local Security Checks	high
60890	Scientific Linux Security Update : freetype on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
60861	Scientific Linux Security Update : freetype on SL3.x, SL4.x, SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
57651	GLSA-201201-09 : FreeType: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
50906	SuSE 11 / 11.1 Security Update : freetype2 (SAT Patch Numbers 3202 / 3203)	Nessus	SuSE Local Security Checks	high
50636	RHEL 6 : freetype (RHSA-2010:0864)	Nessus	Red Hat Local Security Checks	high
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
50437	Fedora 12 : freetype-2.3.11-6.fc12 (2010-15785)	Nessus	Fedora Local Security Checks	high
50026	Fedora 13 : freetype-2.3.11-6.fc13 (2010-15705)	Nessus	Fedora Local Security Checks	high
49994	openSUSE Security Update : freetype2 (openSUSE-SU-2010:0726-1)	Nessus	SuSE Local Security Checks	high
49993	openSUSE Security Update : freetype2 (openSUSE-SU-2010:0726-1)	Nessus	SuSE Local Security Checks	high
49971	Mandriva Linux Security Advisory : freetype2 (MDVSA-2010:201)	Nessus	Mandriva Local Security Checks	high
49969	Fedora 14 : freetype-2.4.2-3.fc14 (2010-15878)	Nessus	Fedora Local Security Checks	high
49855	SuSE 10 Security Update : freetype2 (ZYPP Patch Number 7168)	Nessus	SuSE Local Security Checks	high
49823	SuSE9 Security Update : freetype2 (YOU Patch Number 12656)	Nessus	SuSE Local Security Checks	high
49766	Debian DSA-2116-1 : freetype - integer overflow	Nessus	Debian Local Security Checks	high
49749	RHEL 4 / 5 : freetype (RHSA-2010:0737)	Nessus	Red Hat Local Security Checks	high
49748	RHEL 3 : freetype (RHSA-2010:0736)	Nessus	Red Hat Local Security Checks	high
49716	CentOS 4 / 5 : freetype (CESA-2010:0737)	Nessus	CentOS Local Security Checks	high
49715	CentOS 3 : freetype (CESA-2010:0736)	Nessus	CentOS Local Security Checks	high

Detections

Analytics

CVE-2010-3311

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high

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high

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high

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