CVE-2020-24972: The Kleopatra component before 3.1.12 (and before 20.07.80) for GnuPG allows remote attackers to execute arbit
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HIGH 8.8UPGRADEMITIGATEDOWNGRADE
CVE-2020-24972 is a high-severity flaw (CVSS 8.8) affecting kleopatra, fedora, backports sle. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Kleopatra component before 3.1.12 (and before 20.07.80) for GnuPG allows remote attackers to execute arbitrary code because openpgp4fpr: URLs are supported without safe handling of command-line options. The Qt platformpluginpath command-line option can be used to load an arbitrary DLL.
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
opensuse leap MITIGATE
Affected: 15.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 15.1
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · CVE Program · Report a problem with this page Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-24972?
kleopatra: upgrade to 20.07.80; fedora: mitigate or apply the listed mitigation; backports sle: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-24972 being exploited?
CVE-2020-24972 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-24972 affect?
CVE-2020-24972 affects kleopatra, fedora, backports sle. Severity is high (CVSS 8.8). The Kleopatra component before 3.1.12 (and before 20.07.80) for GnuPG allows remote attackers to execute arbitrary code because openpgp4fpr: URLs are supported without safe handling of command-line options. The Qt platformpluginpath command
How urgent is CVE-2020-24972?
Priority 59/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference