Buffer overflow in Ghostscript - CVE-2018-10194

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Main Vulnerability Database Vulnerabilities #VU12107

Buffer overflow in Ghostscript - CVE-2018-10194

Published: April 20, 2018 / Updated: April 23, 2018


Vulnerability identifier: #VU12107
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-10194
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists in the pprintg1 function due boundary error when handling of postscript file data written to PDF. A remote unauthenticated attacker can trick the victim into opening a specially crafted PDF file, trigger memory corruption and cause the application to crash or execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

Ghostscript
Ubuntu
Opensuse
Fedora
wireshark (Alpine package)
openSUSE Leap
ghostscript (Ubuntu package)
libgs9 (Ubuntu package)
ghostscript

How to mitigate CVE-2018-10194

Update to version 9.23.

wireshark (Alpine package) - update to 2.2.14-r0
ghostscript (Ubuntu package) - addressed in versions 9.10~dfsg-0ubuntu10.12, 9.18~dfsg~0-0ubuntu2.8, 9.21~dfsg+1-0ubuntu3.1, 9.22~dfsg+1-0ubuntu1.1
libgs9 (Ubuntu package) - addressed in versions 9.10~dfsg-0ubuntu10.12, 9.18~dfsg~0-0ubuntu2.8, 9.21~dfsg+1-0ubuntu3.1, 9.22~dfsg+1-0ubuntu1.1
ghostscript - addressed in versions 9.20-11.fc26, 9.22-4.fc27, 9.23-2.fc28

External References

Related Security Bulletins