Specially crafted type1 fonts could cause memory corruptions in t1lib

Jon Larimer discovered that t1lib did not properly parse AFM fonts. If a user were tricked into using a specially crafted font file, a remote attacker could cause t1lib to crash or possibly execute arbitrary code with user privileges. (CVE-2010-2642, CVE-2011-0433)

Jonathan Brossard discovered that t1lib 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 t1lib to crash. (CVE-2011-1552, CVE-2011-1553, CVE-2011-1554).

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.

Several vulnerabilities were discovered in t1lib, a Postscript Type 1 font rasterizer library, some of which might lead to code execution through the opening of files embedding bad fonts.

  - CVE-2010-2642     A heap-based buffer overflow in the AFM font metrics     parser potentially leads to the execution of arbitrary     code.

  - CVE-2011-0433     Another heap-based buffer overflow in the AFM font     metrics parser potentially leads to the execution of     arbitrary code.

  - CVE-2011-0764     An invalid pointer dereference allows execution of     arbitrary code using crafted Type 1 fonts.

  - CVE-2011-1552     Another invalid pointer dereference results in an     application crash, triggered by crafted Type 1 fonts.

  - CVE-2011-1553     A use-after-free vulnerability results in an application     crash, triggered by crafted Type 1 fonts.

  - CVE-2011-1554     An off-by-one error results in an invalid memory read     and application crash, triggered by crafted Type 1     fonts.

Updated t1lib 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 moderate 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.

The t1lib library allows you to rasterize bitmaps from PostScript Type 1 fonts.

Two heap-based buffer overflow flaws were found in the way t1lib processed Adobe Font Metrics (AFM) files. If a specially crafted font file was opened by an application linked against t1lib, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2642, CVE-2011-0433)

An invalid pointer dereference flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0764)

A use-after-free flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1553)

An off-by-one flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1554)

An out-of-bounds memory read flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash. (CVE-2011-1552)

Red Hat would like to thank the Evince development team for reporting CVE-2010-2642. Upstream acknowledges Jon Larimer of IBM X-Force as the original reporter of CVE-2010-2642.

All users of t1lib are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All applications linked against t1lib must be restarted for this update to take effect.

Updated texlive 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 moderate 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.

TeX Live is an implementation of TeX. TeX takes a text file and a set of formatting commands as input, and creates a typesetter-independent DeVice Independent (DVI) file as output. The texlive packages provide a number of utilities, including dvips.

TeX Live embeds a copy of t1lib. The t1lib library allows you to rasterize bitmaps from PostScript Type 1 fonts. The following issues affect t1lib code :

Two heap-based buffer overflow flaws were found in the way t1lib processed Adobe Font Metrics (AFM) files. If a specially crafted font file was opened by a TeX Live utility, it could cause the utility to crash or, potentially, execute arbitrary code with the privileges of the user running the utility. (CVE-2010-2642, CVE-2011-0433)

An invalid pointer dereference flaw was found in t1lib. A specially crafted font file could, when opened, cause a TeX Live utility to crash or, potentially, execute arbitrary code with the privileges of the user running the utility. (CVE-2011-0764)

A use-after-free flaw was found in t1lib. A specially crafted font file could, when opened, cause a TeX Live utility to crash or, potentially, execute arbitrary code with the privileges of the user running the utility. (CVE-2011-1553)

An off-by-one flaw was found in t1lib. A specially crafted font file could, when opened, cause a TeX Live utility to crash or, potentially, execute arbitrary code with the privileges of the user running the utility. (CVE-2011-1554)

An out-of-bounds memory read flaw was found in t1lib. A specially crafted font file could, when opened, cause a TeX Live utility to crash. (CVE-2011-1552)

Red Hat would like to thank the Evince development team for reporting CVE-2010-2642. Upstream acknowledges Jon Larimer of IBM X-Force as the original reporter of CVE-2010-2642.

All users of texlive are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

This update of t1lib fixes memory corruptions and a heap-based overflow in the afm font parser.

The t1lib library allows you to rasterize bitmaps from PostScript Type 1 fonts.

Two heap-based buffer overflow flaws were found in the way t1lib processed Adobe Font Metrics (AFM) files. If a specially crafted font file was opened by an application linked against t1lib, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2642, CVE-2011-0433)

An invalid pointer dereference flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0764)

A use-after-free flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1553)

An off-by-one flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1554)

An out-of-bounds memory read flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash. (CVE-2011-1552)

All users of t1lib are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All applications linked against t1lib must be restarted for this update to take effect.

teTeX is an implementation of TeX. TeX takes a text file and a set of formatting commands as input, and creates a typesetter-independent DeVice Independent (DVI) file as output.

teTeX embeds a copy of t1lib to rasterize bitmaps from PostScript Type 1 fonts. The following issues affect t1lib code :

Two heap-based buffer overflow flaws were found in the way t1lib processed Adobe Font Metrics (AFM) files. If a specially crafted font file was opened by teTeX, it could cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX. (CVE-2010-2642, CVE-2011-0433)

An invalid pointer dereference flaw was found in t1lib. A specially crafted font file could, when opened, cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX. (CVE-2011-0764)

A use-after-free flaw was found in t1lib. A specially crafted font file could, when opened, cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX.
(CVE-2011-1553)

An off-by-one flaw was found in t1lib. A specially crafted font file could, when opened, cause teTeX to crash or, potentially, execute arbitrary code with the privileges of the user running teTeX.
(CVE-2011-1554)

An out-of-bounds memory read flaw was found in t1lib. A specially crafted font file could, when opened, cause teTeX to crash.
(CVE-2011-1552)

teTeX embeds a copy of Xpdf, an open source Portable Document Format (PDF) file viewer, to allow adding images in PDF format to the generated PDF documents. The following issues affect Xpdf code :

An uninitialized pointer use flaw was discovered in Xpdf. If pdflatex was used to process a TeX document referencing a specially crafted PDF file, it could cause pdflatex to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex.
(CVE-2010-3702)

An array index error was found in the way Xpdf parsed PostScript Type 1 fonts embedded in PDF documents. If pdflatex was used to process a TeX document referencing a specially crafted PDF file, it could cause pdflatex to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2010-3704)

All users of tetex are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-1201 advisory.

    - more robust fix for CVE-2010-3702 (#773178)
    - apply patch for CVE-2010-3702,3704 (#773180)

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.

Two heap-based buffer overflow flaws were found in the way t1lib processed Adobe Font Metrics (AFM) files. If a specially crafted font file was opened by an application linked against t1lib, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2642 , CVE-2011-0433)

An invalid pointer dereference flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0764)

A use-after-free flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1553)

An off-by-one flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1554)

An out-of-bounds memory read flaw was found in t1lib. A specially crafted font file could, when opened, cause an application linked against t1lib to crash. (CVE-2011-1552)

This update fixes several security flaws in t1lib (flaws in AFM parser and when handling specially crafted Type1 fonts).

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 multiple vulnerabilities as referenced in the RHSA-2012:0137 advisory.

    TeX Live is an implementation of TeX. TeX takes a text file and a set of     formatting commands as input, and creates a typesetter-independent DeVice     Independent (DVI) file as output. The texlive packages provide a number of     utilities, including dvips.

    TeX Live embeds a copy of t1lib. The t1lib library allows you to rasterize     bitmaps from PostScript Type 1 fonts. The following issues affect t1lib     code:

    Two heap-based buffer overflow flaws were found in the way t1lib processed     Adobe Font Metrics (AFM) files. If a specially-crafted font file was opened     by a TeX Live utility, it could cause the utility to crash or, potentially,     execute arbitrary code with the privileges of the user running the utility.
    (CVE-2010-2642, CVE-2011-0433)

    An invalid pointer dereference flaw was found in t1lib. A specially-crafted     font file could, when opened, cause a TeX Live utility to crash or,     potentially, execute arbitrary code with the privileges of the user running     the utility. (CVE-2011-0764)

    A use-after-free flaw was found in t1lib. A specially-crafted font file     could, when opened, cause a TeX Live utility to crash or, potentially,     execute arbitrary code with the privileges of the user running the utility.
    (CVE-2011-1553)

    An off-by-one flaw was found in t1lib. A specially-crafted font file could,     when opened, cause a TeX Live utility to crash or, potentially, execute     arbitrary code with the privileges of the user running the utility.
    (CVE-2011-1554)

    An out-of-bounds memory read flaw was found in t1lib. A specially-crafted     font file could, when opened, cause a TeX Live utility to crash.
    (CVE-2011-1552)

    Red Hat would like to thank the Evince development team for reporting     CVE-2010-2642. Upstream acknowledges Jon Larimer of IBM X-Force as the     original reporter of CVE-2010-2642.

    All users of texlive are advised to upgrade to these updated packages,     which contain backported patches to correct these issues.

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
74611	openSUSE Security Update : t1lib (openSUSE-SU-2012:0559-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	medium
57616	Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : t1lib vulnerabilities (USN-1335-1)	Nessus	Ubuntu Local Security Checks	2012/1/20	2019/9/19	high
57542	Debian DSA-2388-1 : t1lib - several vulnerabilities	Nessus	Debian Local Security Checks	2012/1/16	2021/1/11	high
57732	CentOS 6 : t1lib (CESA-2012:0062)	Nessus	CentOS Local Security Checks	2012/1/31	2021/1/4	high
57982	CentOS 6 : texlive (CESA-2012:0137)	Nessus	CentOS Local Security Checks	2012/2/17	2021/1/4	high
59523	SuSE 10 Security Update : t1lib (ZYPP Patch Number 8089)	Nessus	SuSE Local Security Checks	2012/6/15	2021/1/19	medium
61226	Scientific Linux Security Update : t1lib on SL6.x i386/x86_64 (20120124)	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
61657	Scientific Linux Security Update : tetex on SL5.x i386/x86_64 (20120823)	Nessus	Scientific Linux Local Security Checks	2012/8/24	2021/1/14	high
68602	Oracle Linux 5 : tetex (ELSA-2012-1201)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2025/4/29	medium
69647	Amazon Linux AMI : t1lib (ALAS-2012-40)	Nessus	Amazon Linux Local Security Checks	2013/9/4	2018/4/18	high
57715	Fedora 15 : t1lib-5.1.2-9.fc15 (2012-0266)	Nessus	Fedora Local Security Checks	2012/1/30	2021/1/11	high
57969	RHEL 6 : texlive (RHSA-2012:0137)	Nessus	Red Hat Local Security Checks	2012/2/16	2025/4/15	medium

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