UNIX symbolic link following in ark - CVE-2020-24654

Vulnerability identifier: #VU46109

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-24654

CWE-ID: CWE-61

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a symlink following issue when processing .tar archives in KDE ark.  remote attacker can trick the victim to open a specially crafted .tar archive and overwrite arbitrary files on the target system.

ark
Gentoo Linux
Arch Linux
Fedora
SUSE Linux
Opensuse
Ubuntu
ark (Debian package)
ark (Alpine package)
akonadi-calendar-tools (Alpine package)
ark (Ubuntu package)
ark

Install updates from vendor's website.

ark - update to 20.08.0
ark (Debian package) - update to 18.08.3-1+deb10u2
ark (Alpine package) - update to 20.08.0-r1
akonadi-calendar-tools (Alpine package) - update to 20.08.1-r0
ark (Ubuntu package) - addressed in versions 4:15.12.3-0ubuntu1.2, 4:17.12.3-0ubuntu1.2, 4:19.12.3-0ubuntu1.2
ark - addressed in versions 19.12.2-3.el8, 20.04.3-5.fc32, 20.04.3-5.fc33

• https://kde.org/info/security/advisory-20200827-1.txt

• Arbitrary file overwrite in KDE Ark
• OpenSUSE Linux update for ark
• UNIX symbolic link following in ark (Alpine package)
• Arch Linux update for ark
• UNIX symbolic link following in akonadi-calendar-tools (Alpine package)
• Debian update for ark
• OpenSUSE Linux update for ark
• Gentoo update for Ark
• Gentoo update for Ark
• Ubuntu update for ark
• Fedora EPEL 8 update for ark
• Fedora 33 update for ark
• Fedora 32 update for ark