The .sethalftone5 function in psi/zht2.c in Ghostscript before 9.21 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted Postscript document that calls .sethalftone5 with an empty operand stack.

An update for ghostscript is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es) :

* It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)

* It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

* It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update for ghostscript is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es) :

* It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)

* It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978)

* It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

* It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the ghostscript packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - It was found that the ghostscript functions getenv,     filenameforall and .libfile did not honor the -dSAFER     option, usually used when processing untrusted     documents, leading to information disclosure. A     specially crafted postscript document could read     environment variable, list directory and retrieve file     content respectively, from the target. (CVE-2013-5653,     CVE-2016-7977)

  - It was found that the ghostscript function .setdevice     suffered a use-after-free vulnerability due to an     incorrect reference count. A specially crafted     postscript document could trigger code execution in the     context of the gs process. (CVE-2016-7978)

  - It was found that the ghostscript function     .initialize_dsc_parser did not validate its parameter     before using it, allowing a type confusion flaw. A     specially crafted postscript document could cause a     crash code execution in the context of the gs process.
    (CVE-2016-7979)

  - It was found that ghostscript did not sufficiently     check the validity of parameters given to the     .sethalftone5 function. A specially crafted postscript     document could cause a crash, or execute arbitrary code     in the context of the gs process. (CVE-2016-8602)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201702-31 (GPL Ghostscript: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in GPL Ghostscript and the       bundled OpenJPEG. Please review the CVE identifiers and GLSA-201612-26       (OpenJPEG) referenced below for additional information.
    Note: GPL Ghostscript in Gentoo since app-text/ghostscript-gpl-9.20-r1       no longer bundles OpenJPEG.
  Impact :

    A context-dependent attacker could entice a user to open a specially       crafted PostScript file or PDF using GPL Ghostscript possibly resulting       in the execution of arbitrary code with the privileges of the process or       a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653 , CVE-2016-7977)

It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

An update for ghostscript is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es) :

* It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)

* It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

* It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

An update for ghostscript is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es) :

* It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)

* It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978)

* It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

* It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

Security Fix(es) :

  - It was found that the ghostscript functions getenv,     filenameforall and .libfile did not honor the -dSAFER     option, usually used when processing untrusted     documents, leading to information disclosure. A     specially crafted postscript document could read     environment variable, list directory and retrieve file     content respectively, from the target. (CVE-2013-5653,     CVE-2016-7977)

  - It was found that the ghostscript function .setdevice     suffered a use- after-free vulnerability due to an     incorrect reference count. A specially crafted     postscript document could trigger code execution in the     context of the gs process. (CVE-2016-7978)

  - It was found that the ghostscript function     .initialize_dsc_parser did not validate its parameter     before using it, allowing a type confusion flaw. A     specially crafted postscript document could cause a     crash code execution in the context of the gs process.
    (CVE-2016-7979)

  - It was found that ghostscript did not sufficiently check     the validity of parameters given to the .sethalftone5     function. A specially crafted postscript document could     cause a crash, or execute arbitrary code in the context     of the gs process. (CVE-2016-8602)

Security Fix(es) :

  - It was found that the ghostscript functions getenv,     filenameforall and .libfile did not honor the -dSAFER     option, usually used when processing untrusted     documents, leading to information disclosure. A     specially crafted postscript document could read     environment variable, list directory and retrieve file     content respectively, from the target. (CVE-2013-5653,     CVE-2016-7977)

  - It was found that the ghostscript function     .initialize_dsc_parser did not validate its parameter     before using it, allowing a type confusion flaw. A     specially crafted postscript document could cause a     crash code execution in the context of the gs process.
    (CVE-2016-7979)

  - It was found that ghostscript did not sufficiently check     the validity of parameters given to the .sethalftone5     function. A specially crafted postscript document could     cause a crash, or execute arbitrary code in the context     of the gs process. (CVE-2016-8602)

The remote OracleVM system is missing necessary patches to address critical security updates :

  - Added security fixes for :

  - CVE-2013-5653 (bug #1380327)

  - CVE-2016-7977 (bug #1380415)

  - CVE-2016-7979 (bug #1382305)

  - CVE-2016-8602 (bug #1383940)

From Red Hat Security Advisory 2017:0014 :

An update for ghostscript is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es) :

* It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)

* It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

* It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

From Red Hat Security Advisory 2017:0013 :

An update for ghostscript is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es) :

* It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)

* It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978)

* It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

* It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

Tavis Ormandy discovered multiple vulnerabilities in the way that Ghostscript processes certain Postscript files. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service or possibly execute arbitrary code.
(CVE-2016-7976, CVE-2016-7978, CVE-2016-7979, CVE-2016-8602)

Multiple vulnerabilities were discovered in Ghostscript related to information disclosure. If a user or automated system were tricked into opening a specially crafted file, an attacker could expose sensitive data. (CVE-2013-5653, CVE-2016-7977).

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.

This update fixes a rare ocasion where ghostscript would fail when displaying *.ps files. More info can be found [here](http://bugs.ghostscript.com/show_bug.cgi?id=697286).

----

This is a security update for these CVEs :

  -     [CVE-2016-8602](https://bugzilla.redhat.com/show_bug.cgi     ?id=1383940) - *check for sufficient params in     .sethalftone5*

  -     [CVE-2016-7977](https://bugzilla.redhat.com/show_bug.cgi     ?id=1380415) - *.libfile does not honor -dSAFER* [This     CVE is now correctly fixed, previous release was     accidentally missing the fix.]

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This is a security update for these CVEs :

  -     [CVE-2016-8602](https://bugzilla.redhat.com/show_bug.cgi     ?id=1383940) - *check for sufficient params in     .sethalftone5*

  -     [CVE-2016-7977](https://bugzilla.redhat.com/show_bug.cgi     ?id=1380415) - *.libfile does not honor -dSAFER* [This     CVE is now correctly fixed, previous release was     accidentally missing the fix.]

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for ghostscript fixes the following issues :

  - CVE-2016-8602: Insufficient parameter check in     .sethalftone5 (bsc#1004237)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for ghostscript fixes the following issues :

  - CVE-2016-8602: Insufficient parameter check in     .sethalftone5 (bsc#1004237).

This update was imported from the SUSE:SLE-12:Update update project.

This update for ghostscript fixes the following issues :

  - CVE-2016-8602: Insufficient parameter check in     .sethalftone5 (bsc#1004237).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for ghostscript fixes the following issues :

  - CVE-2016-8602: Fixes a NULL dereference in .sethalftone5     (boo#1004237).

  - CVE-2013-5653, CVE-2016-7978, CVE-2016-7979: Fix     multiple -dsafer related CVE's (boo#1001951).

Several vulnerabilities were discovered in Ghostscript, the GPL PostScript/PDF interpreter, which may lead to the execution of arbitrary code or information disclosure if a specially crafted Postscript file is processed.

ID	Name	Product	Family	Severity
101400	Virtuozzo 6 : ghostscript / ghostscript-devel / ghostscript-doc / etc (VZLSA-2017-0014)	Nessus	Virtuozzo Local Security Checks	critical
101399	Virtuozzo 7 : ghostscript / ghostscript-cups / ghostscript-devel / etc (VZLSA-2017-0013)	Nessus	Virtuozzo Local Security Checks	critical
99813	EulerOS 2.0 SP1 : ghostscript (EulerOS-SA-2016-1050)	Nessus	Huawei Local Security Checks	critical
97343	GLSA-201702-31 : GPL Ghostscript: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
96395	Amazon Linux AMI : ghostscript (ALAS-2017-784)	Nessus	Amazon Linux Local Security Checks	critical
96309	RHEL 6 : ghostscript (RHSA-2017:0014)	Nessus	Red Hat Local Security Checks	critical
96308	RHEL 7 : ghostscript (RHSA-2017:0013)	Nessus	Red Hat Local Security Checks	critical
96302	Scientific Linux Security Update : ghostscript on SL7.x x86_64 (20170104)	Nessus	Scientific Linux Local Security Checks	critical
96301	Scientific Linux Security Update : ghostscript on SL6.x i386/x86_64 (20170104)	Nessus	Scientific Linux Local Security Checks	critical
96300	OracleVM 3.3 / 3.4 : ghostscript (OVMSA-2017-0002)	Nessus	OracleVM Local Security Checks	critical
96299	Oracle Linux 6 : ghostscript (ELSA-2017-0014)	Nessus	Oracle Linux Local Security Checks	critical
96298	Oracle Linux 7 : ghostscript (ELSA-2017-0013)	Nessus	Oracle Linux Local Security Checks	critical
96286	CentOS 6 : ghostscript (CESA-2017:0014)	Nessus	CentOS Local Security Checks	critical
96285	CentOS 7 : ghostscript (CESA-2017:0013)	Nessus	CentOS Local Security Checks	critical
95467	Ubuntu 14.04 LTS / 16.04 LTS : Ghostscript vulnerabilities (USN-3148-1)	Nessus	Ubuntu Local Security Checks	critical
95300	Fedora 23 : ghostscript (2016-15d4c05a19)	Nessus	Fedora Local Security Checks	high
95004	Fedora 25 : ghostscript (2016-62f2b66ed1)	Nessus	Fedora Local Security Checks	high
94615	Fedora 24 : ghostscript (2016-3dad5dfd03)	Nessus	Fedora Local Security Checks	high
94607	SUSE SLES11 Security Update : ghostscript-library (SUSE-SU-2016:2723-1)	Nessus	SuSE Local Security Checks	high
94528	openSUSE Security Update : ghostscript (openSUSE-2016-1258)	Nessus	SuSE Local Security Checks	high
94322	SUSE SLED12 / SLES12 Security Update : ghostscript (SUSE-SU-2016:2654-1)	Nessus	SuSE Local Security Checks	high
94311	openSUSE Security Update : ghostscript (openSUSE-2016-1237)	Nessus	SuSE Local Security Checks	critical
94023	Debian DSA-3691-1 : ghostscript - security update	Nessus	Debian Local Security Checks	critical

Detections

Analytics

CVE-2016-8602

high

Tenable Plugins

critical

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