Out-of-bounds read in Libextractor - CVE-2017-15922

 

Out-of-bounds read in Libextractor - CVE-2017-15922

Published: October 26, 2017 / Updated: August 8, 2020


Vulnerability identifier: #VU38014
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-15922
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

In GNU Libextractor 1.4, there is an out-of-bounds read in the EXTRACTOR_dvi_extract_method function in plugins/dvi_extractor.c.


Affected software

Libextractor
Arch Linux
Ubuntu
extract (Ubuntu package)
libextractor-dev (Ubuntu package)
libextractor3 (Ubuntu package)

How to mitigate CVE-2017-15922

Install update from vendor's website.

extract (Ubuntu package) - update to 1:1.3-4+deb9u3build0.16.04.1
libextractor-dev (Ubuntu package) - update to 1:1.3-4+deb9u3build0.16.04.1
libextractor3 (Ubuntu package) - update to 1:1.3-4+deb9u3build0.16.04.1

External References

Related Security Bulletins