Buffer over-read in Libextractor - CVE-2018-16430
Published: October 14, 2018
Vulnerability identifier: #VU15356
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-16430
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in EXTRACTOR_zip_extract_method() in zip_extractor.c. A remote attacker can create a specially crafted archive, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
Affected software
Libextractor
libextractor (Debian package)
extract (Ubuntu package)
libextractor-dev (Ubuntu package)
libextractor3 (Ubuntu package)
Ubuntu
libextractor (Debian package)
extract (Ubuntu package)
libextractor-dev (Ubuntu package)
libextractor3 (Ubuntu package)
Ubuntu
How to mitigate CVE-2018-16430
Install updates from vendor's repository.
libextractor (Debian package) - update to 1:1.3-4+deb9u2
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
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