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
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
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.
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: 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.

Comment 3 errata-xmlrpc 2026-01-29 16:39:11 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:1592 https://access.redhat.com/errata/RHSA-2026:1592

Comment 4 errata-xmlrpc 2026-01-29 18:28:10 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:1595 https://access.redhat.com/errata/RHSA-2026:1595

Comment 5 errata-xmlrpc 2026-01-29 18:49:32 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:1597 https://access.redhat.com/errata/RHSA-2026:1597

Comment 6 errata-xmlrpc 2026-02-02 21:55:32 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:1760 https://access.redhat.com/errata/RHSA-2026:1760

Comment 7 errata-xmlrpc 2026-02-03 01:24:12 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:1773 https://access.redhat.com/errata/RHSA-2026:1773

Comment 8 errata-xmlrpc 2026-02-04 08:01:43 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:1881 https://access.redhat.com/errata/RHSA-2026:1881

Comment 9 errata-xmlrpc 2026-02-04 09:07:16 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:1882 https://access.redhat.com/errata/RHSA-2026:1882

Comment 10 errata-xmlrpc 2026-02-04 21:05:46 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:1967 https://access.redhat.com/errata/RHSA-2026:1967

Comment 11 errata-xmlrpc 2026-02-09 11:55:17 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2026:2329 https://access.redhat.com/errata/RHSA-2026:2329

Comment 12 errata-xmlrpc 2026-02-09 12:06:58 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:2328 https://access.redhat.com/errata/RHSA-2026:2328

Comment 13 errata-xmlrpc 2026-02-10 14:48:43 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:2448 https://access.redhat.com/errata/RHSA-2026:2448

Comment 14 errata-xmlrpc 2026-02-10 14:52:17 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:2449 https://access.redhat.com/errata/RHSA-2026:2449