Bug 2454085

Summary: CVE-2026-34871 mbedtls: entropy on Linux can fall back to /dev/urandom [fedora-all]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: mbedtlsAssignee: ms
Status: ON_QA --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: bill.roberts, ms, pbrobinson, redhat-bugzilla
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["33615074-ca0f-40cd-8288-6e02e5d713bc"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2453959    

Description Guilherme de Almeida Suckevicz 2026-04-01 20:46:55 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Fedora Update System 2026-04-02 16:19:09 UTC
FEDORA-2026-10443c65e3 (mbedtls-3.6.6-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-10443c65e3

Comment 2 Fedora Update System 2026-04-02 16:19:22 UTC
FEDORA-2026-3a9536df40 (mbedtls-3.6.6-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3a9536df40

Comment 3 Fedora Update System 2026-04-02 16:19:35 UTC
FEDORA-2026-8c332fbf00 (mbedtls-3.6.6-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-8c332fbf00

Comment 4 Fedora Update System 2026-04-03 17:31:08 UTC
FEDORA-2026-10443c65e3 has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-10443c65e3`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-10443c65e3

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-04-03 17:56:54 UTC
FEDORA-2026-8c332fbf00 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-8c332fbf00`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8c332fbf00

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-04-03 18:04:44 UTC
FEDORA-2026-3a9536df40 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3a9536df40`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3a9536df40

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.