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1.9
CVSSv2

CVE-2021-42375

Published: 15/11/2021 Updated: 07/11/2023
CVSS v2 Base Score: 1.9 | Impact Score: 2.9 | Exploitability Score: 3.4
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 169
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.

Vulnerability Trend

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busybox busybox 1.33.1

fedoraproject fedora 33

fedoraproject fedora 34

netapp cloud backup -

netapp solidfire -

netapp hci management node -

netapp h300s_firmware -

netapp h500s_firmware -

netapp h700s_firmware -

netapp h300e_firmware -

netapp h500e_firmware -

netapp h700e_firmware -

netapp h410s_firmware -

Vendor Advisories

Red Hat: CVE-2021-42375
An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters This may be used for DoS under rare conditions of filtered command input ...
Arch Linux Issues:
An incorrect handling of a special element in Busybox's ash applet before version 1340 leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters This may be used for denial service under rare conditions of filtered command input ...

References

NVD-CWE-Otherhttps://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/https://security.netapp.com/advisory/ntap-20211223-0002/https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfroghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/https://nvd.nist.govhttps://access.redhat.com/security/cve/cve-2021-42375
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
deserializationCVE-2024-4040cross-site scriptingCVE-2023-25790CVE-2024-2961XML external entityCVE-2024-26926CVE-2024-32806CVE-2024-32711
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