Integer overflow in Artifex jbig2dec - CVE-2017-7975

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Main Vulnerability Database Vulnerabilities #VU6703

Integer overflow in Artifex jbig2dec - CVE-2017-7975

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


Vulnerability identifier: #VU6703
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-7975
CWE-ID: CWE-190
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.

The weakness exists due to integer overflow in the jbig2_build_huffman_table function in jbig2_huffman.c during operations on a crafted JBIG2 file. A remote attacker can send a specially crafted .jb2 file, trigger out-of-bounds writes and cause the application to crash or execute arbitrary code with privileges of the current user.

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-2017-7975

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