Red Hat Enterprise Linux (iperf3): Schwachstelle ermöglicht Denial of Service

Summary

Product

Vulnerabilities 1

• High 7.5
  CVE-2026-71217 Public exploit

  Iperf3: iperf3 server accepts unbounded peer-controlled json parameters enabling remote denial of service via resource exhaustion

  A flaw was found in iperf3. A remote attacker can exploit this vulnerability by sending crafted control-channel JSON with oversized numeric parameters, such as `parallel` and `len`, which are not properly validated by the server. This improper input validatio…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux
  Aug 11, 2026

Revision history

1. 2026-10-20 #7

   Neue Updates von SUSE aufgenommen

2. 2026-10-18 #6

   Neue Updates von openSUSE aufgenommen

3. 2026-10-15 #5

   Neue Updates von SUSE aufgenommen

4. 2026-09-03 #4

   Neue Updates von Oracle Linux aufgenommen

5. 2026-09-01 #3

   Neue Updates von Oracle Linux und Rocky Enterprise Software Foundation aufgenommen

6. 2026-08-31 #2

   Neue Updates von Rocky Enterprise Software Foundation und Amazon aufgenommen

7. 2026-08-30 #1

   Initiale Fassung

References

• Red Hat Security Advisory RHSA-2026:61257 vom 2026-08-30
  https://access.redhat.com/errata/RHSA-2026:61257
• Rocky Linux Security Advisory RLSA-2026:61389 vom 2026-09-01
  https://errata.build.resf.org/RLSA-2026:61389
• Amazon Linux Security Advisory ALAS2-2026-3869 vom 2026-09-01
  https://alas.aws.amazon.com/AL2/ALAS2-2026-3869.html
• Rocky Linux Security Advisory RLSA-2026:61257 vom 2026-08-31
  https://errata.build.resf.org/RLSA-2026:61257
• Oracle Linux Security Advisory ELSA-2026-61389 vom 2026-09-02
  https://linux.oracle.com/errata/ELSA-2026-61389-0.html
• Rocky Linux Security Advisory RLSA-2026:61680 vom 2026-09-01
  https://errata.build.resf.org/RLSA-2026:61680
• Oracle Linux Security Advisory ELSA-2026-61680 vom 2026-09-03
  https://linux.oracle.com/errata/ELSA-2026-61680-0.html
• Oracle Linux Security Advisory ELSA-2026-61257 vom 2026-09-03
  https://linux.oracle.com/errata/ELSA-2026-61257-0.html
• SUSE Security Update SUSE-SU-2026:4678-1 vom 2026-10-15
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/029870.html
• openSUSE Security Update OPENSUSE-SU-2026:12060-1 vom 2026-10-18
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WVURYNW7KMOY3RQC6OJUZLHYUU5HP4Y3/
• openSUSE Security Update OPENSUSE-SU-2026:22090-1 vom 2026-10-18
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/NUCG2E3SKHREXORLRFPZVJFWQTGOP25G/
• SUSE Security Update SUSE-SU-2026:24234-1 vom 2026-10-20
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/029929.html