Vulnerability Details CVE-2021-0249
On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS may allow an attacker to arbitrarily execute code or commands on the target to take over or otherwise impact the device by sending crafted packets to or through the device. This issue affects: Juniper Networks Junos OS on SRX Series: 15.1X49 versions prior to 15.1X49-D190; 17.4 versions prior to 17.4R2-S9; 17.4R3 and later versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R3-S1; 18.3 versions prior to 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S4, 19.1R2; 19.2 versions prior to 19.2R1-S1, 19.2R2. An indicator of compromise can be the following text in the UTM log: RT_UTM: AV_FILE_NOT_SCANNED_PASSED_MT:
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 61.4%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 10.0
Products affected by CVE-2021-0249
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cpe:2.3:h:juniper:srx1500:-
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cpe:2.3:h:juniper:srx300:-
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cpe:2.3:h:juniper:srx320:-
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cpe:2.3:h:juniper:srx340:-
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cpe:2.3:h:juniper:srx345:-
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cpe:2.3:h:juniper:srx380:-
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cpe:2.3:h:juniper:srx4100:-
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cpe:2.3:h:juniper:srx4200:-
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cpe:2.3:h:juniper:srx4600:-
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cpe:2.3:h:juniper:srx5400:-
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cpe:2.3:h:juniper:srx550:-
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cpe:2.3:h:juniper:srx5600:-
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cpe:2.3:h:juniper:srx5800:-
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cpe:2.3:o:juniper:junos:15.1x49
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cpe:2.3:o:juniper:junos:17.4
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cpe:2.3:o:juniper:junos:18.1
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cpe:2.3:o:juniper:junos:18.2
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cpe:2.3:o:juniper:junos:18.3
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cpe:2.3:o:juniper:junos:18.4
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cpe:2.3:o:juniper:junos:19.1
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cpe:2.3:o:juniper:junos:19.2