Integer overflow in Artifex jbig2dec - CVE-2017-7976
Published: May 24, 2017 / Updated: August 30, 2017
Vulnerability identifier: #VU6704
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-7976
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Artifex Software, Inc.
Affected software:
Artifex jbig2dec
Artifex jbig2dec
Detailed vulnerability description
The vulnerability allows a remote attacker to obtain potentially sensitive information or cause DoS condition.
The weakness exists due to integer overflow in the jbig2_image_compose function in jbig2_image.c during operations on a crafted .jb2 file. A remote attacker can send a specially crafted .jb2 file, trigger out-of-bounds writes and access arbitrary files from process memory, cause the application to crash or possibly execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to integer overflow in the jbig2_image_compose function in jbig2_image.c during operations on a crafted .jb2 file. A remote attacker can send a specially crafted .jb2 file, trigger out-of-bounds writes and access arbitrary files from process memory, cause the application to crash or possibly execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2017-7976
Install update from vendor's website.