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                            CERT-Renater

                Note d'Information No. 2025/VULN908
_____________________________________________________________________

DATE                : 29/12/2025

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Packetbeat versions prior to
                              8.19.9, 9.1.9, 9.2.3.

=====================================================================
https://discuss.elastic.co/t/packetbeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-31/384179
https://discuss.elastic.co/t/packetbeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-30/384178
https://discuss.elastic.co/t/packetbeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-29/384177
_____________________________________________________________________


Packetbeat 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-31)
Announcements Security Announcements
ismisepaul (Paul) December 18, 2025, 9:16pm 1

Packetbeat Out-of-bounds Read (ESA-2025-31)

Out-of-bounds read (CWE-125) allows an unauthenticated remote attacker
to perform a buffer overflow (CAPEC-100) via the NFS protocol
dissector, leading to a denial-of-service (DoS) through a reliable
process crash when handling truncated XDR-encoded RPC messages.


Affected Versions:

    7.x: All versions
    8.x: All versions from 8.0.0 up to and including 8.19.8
    9.x:
        All versions from 9.0.0 up to and including 9.1.8
        All versions from 9.2.0 up to and including 9.2.2


Solutions and Mitigations:

The issue is resolved in version 8.19.9, 9.1.9, and 9.2.3.

Severity: CVSSv3.1: 6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE ID: CVE-2025-68382

_____________________________________________________________________


Packetbeat 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-30)
Announcements Security Announcements
ismisepaul (Paul) December 18, 2025, 9:15pm 1

Packetbeat Improper Bounds Check (ESA-2025-30)

Improper Bounds Check (CWE-787) in Packetbeat can allow a remote
unauthenticated attacker to exploit a Buffer Overflow (CAPEC-100)
and reliably crash the application or cause significant resource
exhaustion via a single crafted UDP packet with an invalid fragment
sequence number.


Affected Versions:

    7.x: All versions
    8.x: All versions from 8.0.0 up to and including 8.19.8
    9.x:
        All versions from 9.0.0 up to and including 9.1.8
        All versions from 9.2.0 up to and including 9.2.2


Affected Configurations:

Users using memcached collection


Solutions and Mitigations:

The issue is resolved in version 8.19.9, 9.1.9, and 9.2.3.

For Users that Cannot Upgrade:

Users can disable memcached collection in the Network Packet Capture
integration if they are using Elastic Agent and would like other
network collections to continue.

Severity: CVSSv3.1: 6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE ID: CVE-2025-68381

_____________________________________________________________________


Packetbeat 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-29)
Announcements Security Announcements
ismisepaul (Paul) December 18, 2025, 9:13pm 1

Packetbeat Allocation of Resources Without Limits or Throttling
(ESA-2025-29)

Allocation of resources without limits or throttling (CWE-770) allows
an unauthenticated remote attacker to cause excessive allocation
(CAPEC-130) of memory and CPU via the integration of malicious IPv4
fragments, leading to a degradation in Packetbeat.

Affected Versions:

    8.x: All versions from 8.6.0 up to and including 8.19.8
    9.x:
        All versions from 9.0.0 up to and including 9.1.8
        All versions from 9.2.0 up to and including 9.2.2


Solutions and Mitigations:
The issue is resolved in version 8.19.9, 9.1.9, and 9.2.3

Severity: CVSSv3.1: 5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVE ID: CVE-2025-68388

Changelog:
2025-12-19: As this does not cause a denial-of-service but rather
a degradation, it has been downgraded to a medium severity issue


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