Vulnerability Details CVE-2021-42377
An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.03
EPSS Ranking 86.0%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 6.8
References
- https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
- https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
- https://security.netapp.com/advisory/ntap-20211223-0002/
- https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
- https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
- https://security.netapp.com/advisory/ntap-20211223-0002/
Products affected by CVE-2021-42377
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cpe:2.3:a:busybox:busybox:1.33.0
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cpe:2.3:a:busybox:busybox:1.33.1
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cpe:2.3:a:netapp:cloud_backup:-
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cpe:2.3:a:netapp:hci_management_node:-
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cpe:2.3:a:netapp:solidfire:-
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cpe:2.3:h:netapp:h300e:-
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cpe:2.3:h:netapp:h300s:-
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cpe:2.3:h:netapp:h410s:-
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cpe:2.3:h:netapp:h500e:-
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cpe:2.3:h:netapp:h500s:-
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cpe:2.3:h:netapp:h700e:-
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cpe:2.3:h:netapp:h700s:-
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:fedoraproject:fedora:34
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cpe:2.3:o:netapp:h300e_firmware:-
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cpe:2.3:o:netapp:h300s_firmware:-
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cpe:2.3:o:netapp:h410s_firmware:-
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cpe:2.3:o:netapp:h500e_firmware:-
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cpe:2.3:o:netapp:h500s_firmware:-
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cpe:2.3:o:netapp:h700e_firmware:-
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cpe:2.3:o:netapp:h700s_firmware:-