Vulnerability Details CVE-2021-3031
Padding bytes in Ethernet packets on PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series, and PA-7000 Series firewalls are not cleared before the data frame is created. This leaks a small amount of random information from the firewall memory into the Ethernet packets. An attacker on the same Ethernet subnet as the PAN-OS firewall is able to collect potentially sensitive information from these packets. This issue is also known as Etherleak and is detected by security scanners as CVE-2003-0001. This issue impacts: PAN-OS 8.1 version earlier than PAN-OS 8.1.18; PAN-OS 9.0 versions earlier than PAN-OS 9.0.12; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 26.7%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 3.3
References
Products affected by CVE-2021-3031
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cpe:2.3:h:paloaltonetworks:pa-200:-
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cpe:2.3:h:paloaltonetworks:pa-2020:-
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cpe:2.3:h:paloaltonetworks:pa-2050:-
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cpe:2.3:h:paloaltonetworks:pa-220:-
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cpe:2.3:h:paloaltonetworks:pa-3020:-
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cpe:2.3:h:paloaltonetworks:pa-3050:-
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cpe:2.3:h:paloaltonetworks:pa-3060:-
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cpe:2.3:h:paloaltonetworks:pa-3220:-
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cpe:2.3:h:paloaltonetworks:pa-3250:-
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cpe:2.3:h:paloaltonetworks:pa-3260:-
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cpe:2.3:h:paloaltonetworks:pa-500:-
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cpe:2.3:h:paloaltonetworks:pa-5200:-
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cpe:2.3:h:paloaltonetworks:pa-800:-
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.0
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.1
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.10
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.11
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.12
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.13
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.14
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.15
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.16
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.17
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.2
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.3
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.4
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.5
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.6
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.7
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.8
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cpe:2.3:o:paloaltonetworks:pan-os:8.1.9
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.0
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.1
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.10
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.11
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.2
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.3
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.4
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.5
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.6
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.7
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.8
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cpe:2.3:o:paloaltonetworks:pan-os:9.0.9
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cpe:2.3:o:paloaltonetworks:pan-os:9.1.0
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cpe:2.3:o:paloaltonetworks:pan-os:9.1.1
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cpe:2.3:o:paloaltonetworks:pan-os:9.1.2
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cpe:2.3:o:paloaltonetworks:pan-os:9.1.3
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cpe:2.3:o:paloaltonetworks:pan-os:9.1.4