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.

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

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 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.

The remote host is affected by the vulnerability described in GLSA-201701-57 (T1Lib: : Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in T1Lib. Please review       the CVE identifiers referenced below for details.
  Impact :

    Remote attackers, by coercing users to process specially crafted AFM       font or PDF file, could cause a Denial of Service condition or execute       arbitrary code.
  Workaround :

    There is no known workaround at this time.

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)

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

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-906:01 advisory.

    TeTeX is an implementation of TeX for Linux or UNIX systems. TeX takes a text file and a set of formatting     commands as input and creates a typesetter-independent .dvi (DeVice Independent) file as output. Usually,     TeX is used in conjunction with a higher level formatting package like LaTeX or PlainTeX, since TeX by     itself is not very user-friendly. The output format needn't to be DVI, but also PDF, when using pdflatex     or similar tools.
    Install tetex if you want to use the TeX text formatting system. Consider to install tetex-latex (a higher     level formatting package which provides an easier-to-use interface for TeX). Unless you are an expert at     using TeX, you should also install the tetex-doc package, which includes the documentation for TeX.
    Security issues fixed with this release :
     CVE-2010-2642     Heap-based buffer overflow in the AFM font parser in the dvi-backend component in Evince 2.32 and earlier,     teTeX 3.0, t1lib 5.1.2, and possibly other products allows remote attackers to cause a denial of service     (application crash) or possibly execute arbitrary code via a crafted font in conjunction with a DVI file     that is processed by the thumbnailer.
     CVE-2010-3702     The Gfx::getPos function in the PDF parser in xpdf before 3.02pl5, poppler 0.8.7 and possibly other     versions up to 0.15.1, CUPS, kdegraphics, and possibly other products allows context-dependent attackers     to cause a denial of service (crash) via unknown vectors that trigger an uninitialized pointer     dereference.
     CVE-2010-3704     The FoFiType1::parse function in fofi/FoFiType1.cc in the PDF parser in xpdf before 3.02pl5, poppler 0.8.7     and possibly other versions up to 0.15.1, kdegraphics, and possibly other products allows context-     dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a PDF     file with a crafted Type1 font that contains a negative array index, which bypasses input validation and     which triggers memory corruption.
     CVE-2011-0433     No description available at the time of writing, please use the CVE link below.
     CVE-2011-0764     t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6 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-2011-1552     t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6 and other products, reads from invalid memory     locations, which allows remote attackers to cause a denial of service (application crash) via a crafted     Type 1 font in a PDF document, a different vulnerability than CVE-2011-0764.
     CVE-2011-1553     Use-after-free vulnerability in t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6 and other     products, allows remote attackers to cause a denial of service (application crash) via a PDF document     containing a crafted Type 1 font that triggers an invalid memory write, a different vulnerability than     CVE-2011-0764.
     CVE-2011-1554     Off-by-one error in t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6 and other products, allows     remote attackers to cause a denial of service (application crash) via a PDF document containing a crafted     Type 1 font that triggers an invalid memory read, integer overflow, and invalid pointer dereference, a     different vulnerability than CVE-2011-0764.

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.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-0062 advisory.

    [5.1.2-6.1]
    - Fixed CVE-2010-2642, CVE-2011-0433, CVE-2011-0764, CVE-2011-1552, CVE-2011-1553, CVE-2011-1554       Resolves: rhbz#772900

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
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
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
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
217325	Linux Distros Unpatched Vulnerability : CVE-2011-0764	Nessus	Misc.	2025/3/3	2026/7/31	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
96710	GLSA-201701-57 : T1Lib: : Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2017/1/24	2026/1/5	high
61250	Scientific Linux Security Update : texlive on SL6.x i386/x86_64 (20120215)	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
291492	MiracleLinux 3 : tetex-3.0-33.15.1.0.1.AXS3 (AXSA:2012-906:01)	Nessus	Miracle Linux Local Security Checks	2026/1/19	2026/1/19	medium
68439	Oracle Linux 6 : t1lib (ELSA-2012-0062)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2025/4/29	medium

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