Heap-based buffer overflow in UnZip - CVE-2014-8139
Published: January 31, 2020 / Updated: August 3, 2020
Vulnerability identifier: #VU33144
CSH Severity: Medium
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-2014-8139
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Heap-based buffer overflow in the CRC32 verification in Info-ZIP UnZip 6.0 and earlier. A remote attacker can use a crafted zip file in the -t command argument to the unzip command. to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
UnZip
Amazon Linux AMI
Gentoo Linux
Slackware Linux
Fedora
unzip (Alpine package)
unzip
Amazon Linux AMI
Gentoo Linux
Slackware Linux
Fedora
unzip (Alpine package)
unzip
How to mitigate CVE-2014-8139
Update to version 6.10b.
UnZip - update to 6.10 b
unzip (Alpine package) - update to 6.0-r3
unzip - addressed in versions 6.0-19.fc21, 6.0-20.fc21
unzip (Alpine package) - update to 6.0-r3
unzip - addressed in versions 6.0-19.fc21, 6.0-20.fc21