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6.8
CVSSv2

CVE-2021-42377

Published: 15/11/2021 Updated: 07/11/2023
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
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Vulnerability Summary

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.

Vulnerability Trend

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busybox busybox 1.33.1

busybox busybox 1.33.0

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

Arch Linux Issues:
An attacker-controlled pointer free in Busybox's hush applet before version 1340 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 ...

References

CWE-763https://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://security.archlinux.org/CVE-2021-42377
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
firmwareCVE-2023-52866CVE-2024-4367CVE-2024-1721CVE-2023-34992XML injectionCVE-2023-52817SQLCVE-2023-52855
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