It was discovered that the ghostscript .shfill operator did not properly validate certain types. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript document.(CVE-2018-15909)

An issue was discovered in Artifex Ghostscript before 9.24. A type confusion in 'ztype' could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact.(CVE-2018-16511)

An issue was discovered in Artifex Ghostscript before 9.24. The .setdistillerkeys PostScript command is accepted even though it is not intended for use during document processing (e.g., after the startup phase). This leads to memory corruption, allowing remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact.(CVE-2018-16585)

It was discovered that the ghostscript PDF14 compositor did not properly handle the copying of a device. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript document.(CVE-2018-16540)

It was discovered that the ghostscript device cleanup did not properly handle devices replaced with a null device. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript document.(CVE-2018-16541)

It was discovered that the ghostscript did not properly restrict access to files open prior to enabling the -dSAFER mode. An attacker could possibly exploit this to bypass the -dSAFER protection and disclose the content of affected files via a specially crafted PostScript document.(CVE-2018-16539)

An issue was discovered in Artifex Ghostscript before 9.25. Incorrect 'restoration of privilege' checking when running out of stack during exception handling could be used by attackers able to supply crafted PostScript to execute code using the 'pipe' instruction. This is due to an incomplete fix for CVE-2018-16509 .(CVE-2018-16802)

It was discovered that ghostscript did not properly handle certain stack overflow error conditions. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript document.(CVE-2018-16542)

Ghostscript did not honor the -dSAFER option when executing the 'status' instruction, which can be used to retrieve information such as a file's existence and size. A specially crafted postscript document could use this flow to gain information on the targeted system's filesystem content.(CVE-2018-11645)

It was discovered that the ghostscript did not properly validate the operands passed to the setcolor function. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript document.(CVE-2018-16513)

It was discovered that the type of the LockDistillerParams parameter is not properly verified. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript document.(CVE-2018-15910)

It was discovered that the ghostscript /invalidaccess checks fail under certain conditions. An attacker could possibly exploit this to bypass the -dSAFER protection and, for example, execute arbitrary shell commands via a specially crafted PostScript document.(CVE-2018-16509)

It was discovered that ghostscript did not properly verify the key used in aesdecode. An attacker could possibly exploit this to bypass the -dSAFER protection and crash ghostscript or, possibly, execute arbitrary code in the ghostscript context via a specially crafted PostScript document.(CVE-2018-15911)

It was discovered that the ghostscript .tempfile function did not properly handle file permissions. An attacker could possibly exploit this to exploit this to bypass the -dSAFER protection and delete files or disclose their content via a specially crafted PostScript document.(CVE-2018-15908)

This update for ghostscript-library fixes the following issues :

CVE-2018-16511: A type confusion in 'ztype' could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact. (bsc#1107426)

CVE-2018-16540: Attackers able to supply crafted PostScript files to the builtin PDF14 converter could use a use-after-free in copydevice handling to crash the interpreter or possibly have unspecified other impact. (bsc#1107420)

CVE-2018-16541: Attackers able to supply crafted PostScript files could use incorrect free logic in pagedevice replacement to crash the interpreter. (bsc#1107421)

CVE-2018-16542: Attackers able to supply crafted PostScript files could use insufficient interpreter stack-size checking during error handling to crash the interpreter. (bsc#1107413)

CVE-2018-16509: Incorrect 'restoration of privilege' checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the 'pipe' instruction. (bsc#1107410

CVE-2018-16513: Attackers able to supply crafted PostScript files could use a type confusion in the setcolor function to crash the interpreter or possibly have unspecified other impact. (bsc#1107412)

CVE-2018-15910: Attackers able to supply crafted PostScript files could use a type confusion in the LockDistillerParams parameter to crash the interpreter or execute code. (bsc#1106173)

CVE-2017-9611: The Ins_MIRP function allowed remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document. (bsc#1050893)

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.

New ghostscript packages are available for Slackware 14.2 and
-current to fix security issues.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-2918 advisory.

    - Added security fixes for:
      - CVE-2018-16509 (bug #1621156)
      - CVE-2018-15910 (bug #1621157)
      - CVE-2018-16542 (bug #1621380)

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.

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 Important. 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 discovered that the ghostscript /invalidaccess checks fail under certain conditions. An attacker could possibly exploit this to bypass the -dSAFER protection and, for example, execute arbitrary shell commands via a specially crafted PostScript document.
(CVE-2018-16509)

* ghostscript: LockDistillerParams type confusion (699656) (CVE-2018-15910)

* ghostscript: .definemodifiedfont memory corruption if /typecheck is handled (699668) (CVE-2018-16542)

* ghostscript: Stack-based out-of-bounds write in pdf_set_text_matrix function in gdevpdts.c (CVE-2018-10194)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Tavis Ormandy (Google Project Zero) for reporting CVE-2018-16509, CVE-2018-15910, and CVE-2018-16542.

The remote host is affected by the vulnerability described in GLSA-201811-12 (GPL Ghostscript: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in GPL Ghostscript. Please       review the CVE identifiers referenced below for additional information.
  Impact :

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

    There is no known workaround at this time.

The remote Oracle Linux 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2018-3760 advisory.

    - It was found that the fix for CVE-2018-16509 was not complete, the missing       pieces added into ghostscript-CVE-2018-16509.patch
    - Resolves: #1641124 - CVE-2018-16509 ghostscript: /invalidaccess bypass after failed restore

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

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

It was discovered that the ghostscript /invalidaccess checks fail under certain conditions. An attacker could possibly exploit this to bypass the -dSAFER protection and, for example, execute arbitrary shell commands via a specially crafted PostScript document.(CVE-2018-16509)

This update for ghostscript to version 9.25 fixes the following issues :

These security issues were fixed :

CVE-2018-17183: Remote attackers were be able to supply crafted PostScript to potentially overwrite or replace error handlers to inject code (bsc#1109105)

CVE-2018-15909: Prevent type confusion using the .shfill operator that could have been used by attackers able to supply crafted PostScript files to crash the interpreter or potentially execute code (bsc#1106172).

CVE-2018-15908: Prevent attackers that are able to supply malicious PostScript files to bypass .tempfile restrictions and write files (bsc#1106171).

CVE-2018-15910: Prevent a type confusion in the LockDistillerParams parameter that could have been used to crash the interpreter or execute code (bsc#1106173).

CVE-2018-15911: Prevent use uninitialized memory access in the aesdecode operator that could have been used to crash the interpreter or potentially execute code (bsc#1106195).

CVE-2018-16513: Prevent a type confusion in the setcolor function that could have been used to crash the interpreter or possibly have unspecified other impact (bsc#1107412).

CVE-2018-16509: Incorrect 'restoration of privilege' checking during handling of /invalidaccess exceptions could be have been used by attackers able to supply crafted PostScript to execute code using the 'pipe' instruction (bsc#1107410).

CVE-2018-16510: Incorrect exec stack handling in the 'CS' and 'SC' PDF primitives could have been used by remote attackers able to supply crafted PDFs to crash the interpreter or possibly have unspecified other impact (bsc#1107411).

CVE-2018-16542: Prevent attackers able to supply crafted PostScript files from using insufficient interpreter stack-size checking during error handling to crash the interpreter (bsc#1107413).

CVE-2018-16541: Prevent attackers able to supply crafted PostScript files from using incorrect free logic in pagedevice replacement to crash the interpreter (bsc#1107421).

CVE-2018-16540: Prevent use-after-free in copydevice handling that could have been used to crash the interpreter or possibly have unspecified other impact (bsc#1107420).

CVE-2018-16539: Prevent attackers able to supply crafted PostScript files from using incorrect access checking in temp file handling to disclose contents of files on the system otherwise not readable (bsc#1107422).

CVE-2018-16543: gssetresolution and gsgetresolution allowed attackers to have an unspecified impact (bsc#1107423).

CVE-2018-16511: A type confusion in 'ztype' could have been used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact (bsc#1107426).

CVE-2018-16585: The .setdistillerkeys PostScript command was accepted even though it is not intended for use during document processing (e.g., after the startup phase). This lead to memory corruption, allowing remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact (bsc#1107581).

CVE-2018-16802: Incorrect 'restoration of privilege' checking when running out of stack during exception handling could have been used by attackers able to supply crafted PostScript to execute code using the 'pipe' instruction. This is due to an incomplete fix for CVE-2018-16509 (bsc#1108027).

The update package also includes non-security fixes. See advisory for details.

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.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has ghostscript packages installed that are affected by multiple vulnerabilities:

  - The set_text_distance function in     devices/vector/gdevpdts.c in the pdfwrite component in     Artifex Ghostscript through 9.22 does not prevent     overflows in text-positioning calculation, which allows     remote attackers to cause a denial of service     (application crash) or possibly have unspecified other     impact via a crafted PDF document. (CVE-2018-10194)

  - It was discovered that the type of the     LockDistillerParams parameter is not properly verified.
    An attacker could possibly exploit this to bypass the
    -dSAFER protection and crash ghostscript or, possibly,     execute arbitrary code in the ghostscript context via a     specially crafted PostScript document. (CVE-2018-15910)

  - It was discovered that the ghostscript /invalidaccess     checks fail under certain conditions. An attacker could     possibly exploit this to bypass the -dSAFER protection     and, for example, execute arbitrary shell commands via a     specially crafted PostScript document. (CVE-2018-16509)

  - It was discovered that ghostscript did not properly     handle certain stack overflow error conditions. An     attacker could possibly exploit this to bypass the
    -dSAFER protection and crash ghostscript or, possibly,     execute arbitrary code in the ghostscript context via a     specially crafted PostScript document. (CVE-2018-16542)

Note that Nessus has not tested for this issue 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
118043	Amazon Linux 2 : ghostscript (ALAS-2018-1088)	Nessus	Amazon Linux Local Security Checks	2018/10/11	2024/7/31	high
118350	SUSE SLES11 Security Update : ghostscript-library (SUSE-SU-2018:3330-1)	Nessus	SuSE Local Security Checks	2018/10/24	2024/7/29	high
117495	Slackware 14.2 / current : ghostscript (SSA:2018-256-01)	Nessus	Slackware Local Security Checks	2018/9/14	2024/8/7	high
118125	Oracle Linux 7 : ghostscript (ELSA-2018-2918)	Nessus	Oracle Linux Local Security Checks	2018/10/16	2024/11/1	high
118128	RHEL 7 : ghostscript (RHSA-2018:2918)	Nessus	Red Hat Local Security Checks	2018/10/16	2024/7/31	high
119132	GLSA-201811-12 : GPL Ghostscript: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2018/11/26	2024/7/19	critical
119328	Oracle Linux 6 : ghostscript (ELSA-2018-3760)	Nessus	Oracle Linux Local Security Checks	2018/12/4	2024/10/23	high
119815	Amazon Linux AMI : ghostscript (ALAS-2018-1137)	Nessus	Amazon Linux Local Security Checks	2018/12/21	2024/7/15	high
120116	SUSE SLED15 / SLES15 Security Update : ghostscript (SUSE-SU-2018:2976-1)	Nessus	SuSE Local Security Checks	2019/1/2	2024/7/10	high
127204	NewStart CGSL CORE 5.04 / MAIN 5.04 : ghostscript Multiple Vulnerabilities (NS-SA-2019-0035)	Nessus	NewStart CGSL Local Security Checks	2019/8/12	2021/1/14	high

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