CVE-2020-25657
mediumpriority · track · 25EPSS 0.018 · 78 %ileDEEUUSEPSS · scored 2026-10-27
A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedovirt-engine-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-0:4.4.5.9-0.1.el8ev.src as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-backend-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-dbscripts-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-health-check-bundler-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-restapi-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-base-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-plugin-cinderlib-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-plugin-imageio-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-plugin-ovirt-engine-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-plugin-ovirt-engine-common-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-plugin-vmconsole-proxy-helper-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-setup-plugin-websocket-proxy-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-tools-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-tools-backup-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-vmconsole-proxy-helper-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-webadmin-portal-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedovirt-engine-websocket-proxy-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedpython3-ovirt-engine-lib-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169 - Fixedrhvm-0:4.4.5.9-0.1.el8ev.noarch as a component of RHEL-8-RHEV-S-4.4 - Red Hat Virtualization Engine 4.4redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
https://access.redhat.com/errata/RHSA-2021:1169
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (47)
Products and version ranges known to be affected.
- IBM Tivoli Network Manager IP Edition 4.2all versionscert_bundDEcpe:/a:ibm:tivoli_network_manager:ip_edition_4.2
advisories (2)
Vendor and ecosystem advisories describing this.
- RHSA-2021:1169Red Hat Security Advisory: RHV Manager (ovirt-engine) 4.4.z [ovirt-4.4.5] security, bug fix, enhancement2021-04-14csaf · redhat_csafUS
An update is now available for Red Hat Virtualization Engine 4.4. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
- WID-SEC-W-2022-0808Red Hat Virtualization Engine: Mehrere SchwachstellenDeutsch2021-04-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in der Red Hat Virtualization Engine ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, beliebigen Code auszuführen, einen Denial of Service Zustand auszulösen und kryptographische Maßnahmen zu umgehen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (15)
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2021:1169cnnvd
- https://access.redhat.com/security/cve/CVE-2020-25657cnnvd
- https://access.redhat.com/security/cve/cve-2020-25657cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=1889823cnnvd
- https://gitlab.com/m2crypto/m2crypto/-/issues/285cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-25657cnnvd
- https://packetstormsecurity.com/files/162179/Red-Hat-Security-Advisory-2021-1169-01.htmlcnnvd
- https://vigilance.fr/vulnerability/m2crypto-information-disclosure-via-Bleichenbacher-Timing-Attacks-38901cnnvd
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