This summer, Google’s specialists, using the ClusterFuzz and OSS-Fuzz tools, discovered dangerous bug in the library Libarchive, which is responsible for working with archives and compressed files.
ibarchive is included by default with Debian, Ubuntu, Gentoo, Arch Linux, FreeBSD, and NetBSD, and the vulnerability allows an attacker to execute arbitrary code on a vulnerable machine. It is reported that Windows and macOS, which also include the library, are not vulnerable.
The bug received the identifier CVE-2019-18408 and allows the attacker to execute arbitrary code in the system using a specially created archive file. The problem can be exploited through a malicious file obtained from cybercriminals through local applications that use various components of Libarchive in their work.
Problem Information It was released only recently, after the release of patches for Linux and FreeBSD. Vulnerability already fixed in Libarchive version 3.4.0. Most Linux distributions have already fixed the problem.
GitHub published list vulnerable operating systems and applications, which include desktop and server operating systems, package managers, security utilities, file browsers and so on, including well-known names such as pkgutils, Pacman, CMake, Nautilus and Samba.