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)

Specially crafted type1 fonts could cause memory corruptions in t1lib

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.

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.

New t1lib packages are available for Slackware 12.1, 12.2, 13.0, 13.1, 13.37, and -current to fix security issues.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6, teTeX, and other products, uses an invalid     pointer in conjunction with a dereference operation, which allows remote attackers to execute arbitrary     code via a crafted Type 1 font in a PDF document, as demonstrated by testz.2184122398.pdf. (CVE-2011-0764)

Note that Nessus relies on the presence of the package as reported by the vendor.

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
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
74611	openSUSE Security Update : t1lib (openSUSE-SU-2012:0559-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	medium
57679	RHEL 6 : t1lib (RHSA-2012:0062)	Nessus	Red Hat Local Security Checks	2012/1/25	2021/1/14	high
57716	Fedora 16 : t1lib-5.1.2-9.fc16 (2012-0289)	Nessus	Fedora Local Security Checks	2012/1/30	2021/1/11	high
61552	Slackware 12.1 / 12.2 / 13.0 / 13.1 / 13.37 / current : t1lib (SSA:2012-228-01)	Nessus	Slackware Local Security Checks	2012/8/16	2021/1/14	high
217325	Linux Distros Unpatched Vulnerability : CVE-2011-0764	Nessus	Misc.	2025/3/3	2026/1/28	medium
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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