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amazonAmazonALAS-2024-2579
HistoryJun 19, 2024 - 7:15 p.m.

Medium: iperf3

2024-06-1919:15:00
alas.aws.amazon.com
2
malicious client
server hang
iperf3 update
amazon linux 2
cve-2023-7250
red hat.

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

6.9 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

9.1%

Issue Overview:

It is possible for a malicious or malfunctioning client to send less
than the expected amount of data to the server. If this happens, the
server will hang indefinitely waiting for the remainder (or until the
connection gets closed). Because iperf3 is deliberately designed to
service only one client connection at a time, this will prevent other
connections to the iperf3 server.
Avoid running iperf3 with root privileges to minimize impact.
Update iperf3 to a version containing the fix (i.e. iperf-3.15 or
later). (CVE-2023-7250)

Affected Packages:

iperf3

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update iperf3 to update your system.

New Packages:

aarch64:  
    iperf3-3.1.7-2.amzn2.0.4.aarch64  
    iperf3-devel-3.1.7-2.amzn2.0.4.aarch64  
    iperf3-debuginfo-3.1.7-2.amzn2.0.4.aarch64  
  
i686:  
    iperf3-3.1.7-2.amzn2.0.4.i686  
    iperf3-devel-3.1.7-2.amzn2.0.4.i686  
    iperf3-debuginfo-3.1.7-2.amzn2.0.4.i686  
  
src:  
    iperf3-3.1.7-2.amzn2.0.4.src  
  
x86_64:  
    iperf3-3.1.7-2.amzn2.0.4.x86_64  
    iperf3-devel-3.1.7-2.amzn2.0.4.x86_64  
    iperf3-debuginfo-3.1.7-2.amzn2.0.4.x86_64  

Additional References

Red Hat: CVE-2023-7250

Mitre: CVE-2023-7250

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

6.9 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

9.1%