Double Free in libzip - CVE-2017-12858
Published: August 23, 2017 / Updated: August 3, 2020
Vulnerability identifier: #VU33051
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-12858
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Double free vulnerability in the _zip_dirent_read function in zip_dirent.c in libzip allows attackers to have unspecified impact via unknown vectors.
Affected software
libzip
Arch Linux
Fedora
libzip (Alpine package)
mingw-libzip
libzip
Arch Linux
Fedora
libzip (Alpine package)
mingw-libzip
libzip
How to mitigate CVE-2017-12858
Install update from vendor's website.
libzip (Alpine package) - update to 1.2.0-r2
mingw-libzip - addressed in versions 1.1.3-2.fc25, 1.2.0-3.fc26
libzip - addressed in versions 1.3.0-1.fc26, 1.3.0-1.fc27
mingw-libzip - addressed in versions 1.1.3-2.fc25, 1.2.0-3.fc26
libzip - addressed in versions 1.3.0-1.fc26, 1.3.0-1.fc27