Input validation error in Okular - CVE-2020-9359

Vulnerability identifier: #VU26077

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-2020-9359

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input when processing links in PDF files in Okular. A remote attacker can trick the victim into opening a specially crafted PDF file and execute certain application on the system.

Okular
Gentoo Linux
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Fedora
okular (Red Hat package)
okular (Alpine package)
analitza (Alpine package)
akonadi-calendar-tools (Alpine package)
okular

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

okular (Red Hat package) - update to 4.10.5-9.el7
okular (Alpine package) - addressed in versions 19.08.3-r1, 19.12.3-r1
analitza (Alpine package) - update to 19.12.3-r0
akonadi-calendar-tools (Alpine package) - update to 20.04.0-r0
okular - addressed in versions 18.12.2-2.el8, 19.12.3-2.fc30, 19.12.3-2.fc31, 19.12.3-2.fc32

• https://kde.org/info/security/advisory-20200312-1.txt

• Remote code execution in Okular PDF reader for KDE
• Gentoo update for Okular
• Input validation error in akonadi-calendar-tools (Alpine package)
• Input validation error in okular (Alpine package)
• Input validation error in analitza (Alpine package)
• Red Hat Enterprise Linux 7 update for okular
• Fedora 32 update for okular
• Fedora 31 update for okular
• Fedora 30 update for okular
• Fedora EPEL 8 update for okular