Integer overflow in Artifex jbig2dec - CVE-2017-7885
Published: May 24, 2017 / Updated: August 30, 2017
Vulnerability identifier: #VU6702
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7885
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_decode_symbol_dict function in jbig2_symbol_dict.c in libjbig2dec.a during operation on a crafted .jb2 file. A remote attacker can send a specially crafted .jb2 file, trigger heap-based buffer over-read and access arbitrary files from process memory or cause the application to crash.
Successful exploitation of the vulnerability may result in information disclosure or denial of service.
The weakness exists due to integer overflow in the jbig2_decode_symbol_dict function in jbig2_symbol_dict.c in libjbig2dec.a during operation on a crafted .jb2 file. A remote attacker can send a specially crafted .jb2 file, trigger heap-based buffer over-read and access arbitrary files from process memory or cause the application to crash.
Successful exploitation of the vulnerability may result in information disclosure or denial of service.
How to mitigate CVE-2017-7885
Install update from vendor's website.