CVE-2021-42378

HIGH

7.2

Description

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function

CVE Details

CVSS v3.1 Score7.2

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published11/15/2021

Last Modified11/3/2025

Sourcenvd

Honeypot Sightings0

Affected Products

busybox:busyboxfedoraproject:fedora

Weaknesses (CWE)

CWE-416CWE-416

References

https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog(reefs@jfrog.com)

https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/(reefs@jfrog.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/(reefs@jfrog.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/(reefs@jfrog.com)

https://security.netapp.com/advisory/ntap-20211223-0002/(reefs@jfrog.com)

https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog(af854a3a-2127-422b-91ae-364da2661108)

https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2025/01/msg00012.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20211223-0002/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.