high
7.8
CWE
704
Advisory Published
CVE Published
Updated

CVE-2018-15909: Incorrect Type Cast

First published: Thu Aug 23 2018(Updated: )

In Artifex Ghostscript 9.23 before 2018-08-24, a type confusion using the .shfill operator could be used by attackers able to supply crafted PostScript files to crash the interpreter or potentially execute code.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Debian Debian Linux=8.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Artifex Ghostscript<=9.23
Artifex Gpl Ghostscript<9.26
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Eus=7.6
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Workstation=7.0
Pulsesecure Pulse Connect Secure>=8.2r1.0<8.2r12.1
Pulsesecure Pulse Connect Secure>=8.3r1<8.3r7.1
Pulsesecure Pulse Connect Secure>=9.0r1<9.0r3.4
redhat/ghostscript<9.24
9.24
debian/ghostscript
9.53.3~dfsg-7+deb11u7
10.0.0~dfsg-11+deb12u4
10.0.0~dfsg-11+deb12u5
10.03.1~dfsg-2

Remedy

http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=0b6cd1918e1ec4ffd087400a754a845180a4522b

Remedy

http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=e01e77a36cbb2e0277bc3a63852244bec41be0f6

Remedy

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101

Remedy

https://www.kb.cert.org/vuls/id/332928

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Reference Links

Frequently Asked Questions

  • What is CVE-2018-15909?

    CVE-2018-15909 is a vulnerability in Artifex Ghostscript versions 9.23 before 2018-08-24 that allows attackers to crash the interpreter or potentially execute code by exploiting a type confusion using the .shfill operator.

  • How severe is CVE-2018-15909?

    CVE-2018-15909 has a severity rating of 7.8, which is considered high.

  • Which software versions are affected by CVE-2018-15909?

    Artifex Ghostscript versions 9.23 before 2018-08-24 are affected by CVE-2018-15909.

  • How can CVE-2018-15909 be fixed?

    To fix CVE-2018-15909, users should update to a patched version of Artifex Ghostscript, specifically version 9.24 or later.

  • Where can I find more information about CVE-2018-15909?

    More information about CVE-2018-15909 can be found on the CVE website (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15909), the CERT Vulnerability Notes Database (https://www.kb.cert.org/vuls/id/332928), and the Ubuntu security notices (https://ubuntu.com/security/notices/USN-3768-1).

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