python-cryptography: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2023-0557 · first 05.11.2020 · updated 17.09.2026 · CVSS 9,4
What it is about
Python ist eine universelle, üblicherweise interpretierte höhere Programmiersprache. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in python-cryptography ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- Open Source Python Cryptography
- Debian Linux
- Amazon Linux 2
- Juniper JUNOS
- Red Hat Enterprise Linux
- Fedora Linux
- Ubuntu Linux
- SUSE Linux
- Avaya Aura Experience Portal
- IBM QRadar SIEM <7.5.0 UP8
- Dell PowerScale OneFS OneFS <9.4.0.18
- IBM Spectrum Protect Plus <10.1.17
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- IBM QRadar SIEM 7.5.0 UP8
- Dell PowerScale OneFS OneFS 9.4.0.18
- IBM Spectrum Protect Plus 10.1.17
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Ubuntu Security Notice USN-4613-1 vom 2020-11-04 ubuntu.com
- Github Security Advisory GHSA-hggm-jpg3-v476 vom 2020-11-04 github.com
- SUSE Security Update SUSE-SU-2020:3592-1 vom 2020-12-02 lists.suse.com
- SUSE Security Update SUSE-SU-2020:3629-1 vom 2020-12-04 lists.suse.com
- SUSE Security Update SUSE-SU-2021:1109-1 vom 2021-04-09 lists.suse.com
- Red Hat Security Advisory RHSA-2021:1608 vom 2021-05-18 access.redhat.com
- Red Hat Security Advisory RHSA-2021:2239 vom 2021-06-03 access.redhat.com
- Red Hat Security Advisory RHSA-2021:2479 vom 2021-06-17 access.redhat.com
- AVAYA Security Advisory ASA-2021-066 vom 2021-06-17 downloads.avaya.com
- Red Hat Security Advisory RHSA-2021:3119 vom 2021-08-10 access.redhat.com
- Red Hat Security Advisory RHSA-2021:3254 vom 2021-08-25 access.redhat.com
- Juniper Security Advisory JSA11245 vom 2021-10-14 kb.juniper.net
- SUSE Security Update SUSE-SU-2023:0604-1 vom 2023-03-02 lists.suse.com
- SUSE Security Update SUSE-SU-2023:2783-1 vom 2023-07-05 lists.suse.com
- SUSE Security Update SUSE-SU-2023:2783-2 vom 2023-09-20 lists.suse.com
- Fedora Security Advisory FEDORA-EPEL-2024-4FF425606F vom 2024-01-24 bodhi.fedoraproject.org
- IBM Security Bulletin 7145367 vom 2024-03-27 www.ibm.com
- Dell Security Advisory DSA-2024-210 vom 2024-06-04 www.dell.com
- IBM Security Bulletin 7230557 vom 2025-04-10 www.ibm.com
- Amazon Linux Security Advisory ALAS2-2025-2930 vom 2025-07-10 alas.aws.amazon.com
- Debian Security Advisory DLA-4579 vom 2026-05-11 lists.debian.org
- SUSE Security Update SUSE-SU-2026:23404-1 vom 2026-09-10 lists.suse.com
- SUSE Security Update SUSE-SU-2026:23570-1 vom 2026-09-16 lists.suse.com
CVE: CVE-2020-25659
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.