Bug 2386151 (CVE-2025-54349)

Summary: CVE-2025-54349 iperf3: iperf Heap Buffer Overflow
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: adudiak, kshier, omaciel, stcannon, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in iperf3. An off-by-one error in the `iperf_auth.c` file leads to a heap-based buffer overflow, potentially allowing a network attacker to trigger an application-level denial of service. This overflow occurs during the processing of authentication data. The vulnerability can only be exploited with direct network access.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2386261, 2386260    
Bug Blocks:    

Description OSIDB Bzimport 2025-08-03 02:01:12 UTC
In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.