Integer overflow in Artifex jbig2dec - CVE-2017-7976

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU6704

Integer overflow in Artifex jbig2dec - CVE-2017-7976

Published: May 24, 2017 / Updated: August 30, 2017


Vulnerability identifier: #VU6704
CSH Severity: Medium
CVSS v4: 4.6 [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]
CVE-ID: CVE-2017-7976
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.

Affected software

Artifex jbig2dec
Gentoo Linux
Debian Linux
Fedora
Ubuntu
jbig2dec
mupdf
ghostscript

How to mitigate CVE-2017-7976

Install update from vendor's website.

jbig2dec - addressed in versions 0.12-4.el7, 0.12-4.fc25, 0.13-3.fc26
mupdf - addressed in versions 1.10a-6.fc25, 1.10a-6.fc26, 1.10a-7.fc25
ghostscript - addressed in versions 9.20-9.fc24, 9.20-9.fc25, 9.20-10.fc26

External References

Related Security Bulletins