Out-of-bounds read in GhostXPS - CVE-2017-9727
Published: October 2, 2017
Vulnerability identifier: #VU8644
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-9727
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Artifex Software, Inc.
Affected software:
GhostXPS
GhostXPS
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to boundary error in gx_ttfReader__Read function in base/gxttfb.c. A remote unauthenticated attacker can create a specially crafted document, trigger heap-based out-o-bounds memory read and perform a denial of service (DoS) attack.
How to mitigate CVE-2017-9727
Install update from GIT repository.
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=937ccd17ac65935633b2ebc06cb7089b91e17e6b
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=937ccd17ac65935633b2ebc06cb7089b91e17e6b