Vulnerability identifier: #VU46133

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-24972

CWE-ID: CWE-427

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
kleopatra
/

Vendor: KDE.org

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to topenpgp4fpr: URLs are supported without safe handling of command-line options. A remote attacker can trick a victim to process a specially crafted URL via "openpgp4fpr" handler and execute arbitrary code on victim's system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

kleopatra: 18.08.2 - 20.04.3

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External links
http://dev.gnupg.org/rKLEOPATRAb4bd63c1739900d94c04da03045e9445a5a5f54b
http://dev.gnupg.org/source/kleo/browse/master/CMakeLists.txt
http://security.gentoo.org/glsa/202008-21

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.