Use After Free Affecting busybox package, versions <1.31.1-r11
Threat Intelligence
EPSS
0.24% (62nd
percentile)
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Test your applications- Snyk ID SNYK-ALPINE311-BUSYBOX-1920723
- published 12 Nov 2021
- disclosed 15 Nov 2021
Introduced: 12 Nov 2021
CVE-2021-42384 Open this link in a new tabHow to fix?
Upgrade Alpine:3.11 busybox to version 1.31.1-r11 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Alpine.
See How to fix? for Alpine:3.11 relevant fixed versions and status.
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 handle_special function
References
- https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.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://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/
CVSS Scores
version 3.1