Bug 2394050

Summary: CVE-2025-8277 libssh: Memory Exhaustion via Repeated Key Exchange in libssh [fedora-42]
Product: [Fedora] Fedora Reporter: Abhishek Raj <abhraj>
Component: libsshAssignee: Andreas Schneider <asn>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 42CC: ansasaki, asn, jjelen, negativo17, shebburn
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---Flags: fedora-admin-xmlrpc: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["4a52a5d4-d4f9-4391-ad86-d7fd1f9e2994"]}
Fixed In Version: libssh-0.11.3-1.fc42 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2025-09-12 02:06:50 UTC 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: 2383888    

Description Abhishek Raj 2025-09-09 11:52:33 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.

The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams

Comment 1 Fedora Update System 2025-09-10 01:57:29 UTC
FEDORA-2025-9826857157 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-2025-9826857157`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-9826857157

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

Comment 2 Fedora Update System 2025-09-12 02:06:50 UTC
FEDORA-2025-9826857157 (libssh-0.11.3-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.