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.

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.

- 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.

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.

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).

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.

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2010-460:03 advisory.

    The FreeType engine is a free and portable TrueType font rendering engine, developed to provide TrueType     support for a variety of platforms and environments. FreeType is a library which can open and manages font     files as well as efficiently load, hint and render individual glyphs. FreeType is not a font server or a     complete text-rendering library.
    Security issues fixed with this release:
    CVE-2010-2806     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.
    CVE-2010-2808     Buffer overflow in the Mac_Read_POST_Resource function in base/ftobjs.c in FreeType before 2.4.2 allows     remote attackers to cause a denial of service (memory corruption and application crash) or possibly     execute arbitrary code via a crafted Adobe Type 1 Mac Font File (aka LWFN) font.
    CVE-2010-3054     Unspecified vulnerability in FreeType 2.3.9, and other versions before 2.4.2, allows remote attackers to     cause a denial of service via vectors involving nested Standard Encoding Accented Character (aka seac)     calls, related to psaux.h, cffgload.c, cffgload.h, and t1decode.c.
    CVE-2010-3311     No information available at the time of writing, see the CVE link below.

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

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

- 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.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0737 advisory.

    - Modify freetype-2.2.1-CVE-2010-3054.patch
    - Add freetype-2.2.1-CVE-2010-2806.patch         (Protect against negative string_size. Fix comparison.)
    - Add freetype-2.2.1-CVE-2010-3311.patch         (Don't seek behind end of stream.)
    - Add freetype-2.2.1-CVE-2010-3054.patch         (Protect against nested 'seac' calls.)
    - Add freetype-2.2.1-CVE-2010-2808.patch         (Check the total length of collected POST segments.)

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.

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.

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.

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	名称	产品	系列	发布时间	最近更新时间	严重程度
49715	CentOS 3 : freetype (CESA-2010:0736)	Nessus	CentOS Local Security Checks	2010/10/6	2021/1/4	high
49823	SuSE9 Security Update : freetype2 (YOU Patch Number 12656)	Nessus	SuSE Local Security Checks	2010/10/11	2021/1/14	high
49969	Fedora 14 : freetype-2.4.2-3.fc14 (2010-15878)	Nessus	Fedora Local Security Checks	2010/10/14	2021/1/11	high
60890	Scientific Linux Security Update : freetype on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
75504	openSUSE Security Update : freetype2 (openSUSE-SU-2010:0726-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/14	high
49748	RHEL 3 : freetype (RHSA-2010:0736)	Nessus	Red Hat Local Security Checks	2010/10/6	2021/1/14	high
50906	SuSE 11 / 11.1 Security Update : freetype2 (SAT Patch Numbers 3202 / 3203)	Nessus	SuSE Local Security Checks	2010/12/2	2021/1/14	high
284014	MiracleLinux 3 : freetype-2.2.1-28.0.1.AXS3 (AXSA:2010-460:03)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	high
50437	Fedora 12 : freetype-2.3.11-6.fc12 (2010-15785)	Nessus	Fedora Local Security Checks	2010/11/2	2021/1/11	high
68108	Oracle Linux 5 : freetype (ELSA-2010-0737)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2024/10/22	high
49716	CentOS 4 / 5 : freetype (CESA-2010:0737)	Nessus	CentOS Local Security Checks	2010/10/6	2021/1/4	high
49855	SuSE 10 Security Update : freetype2 (ZYPP Patch Number 7168)	Nessus	SuSE Local Security Checks	2010/10/11	2021/1/14	high
49971	Mandriva Linux Security Advisory : freetype2 (MDVSA-2010:201)	Nessus	Mandriva Local Security Checks	2010/10/14	2021/1/6	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	2010/11/5	2019/9/19	high

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