CVE-2021-42383

Name

CVE-2021-42383

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 evaluate function

NVD Severity

medium

Other trackers

CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia

Mailing lists

oss-security, full-disclosure, bugtraq

Exploits

Exploit DB, Metasploit

Forges

GitHub (code, issues), Aports (code, issues)

References

Type	URI
Third Party Advisory	https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/
Mailing List	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
Mailing List	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
Third Party Advisory	https://security.netapp.com/advisory/ntap-20211223-0002/

Match rules

CPE URI	Source package	Min version	Max version
`cpe:2.3:a:busybox:busybox:1.33.1:::::::*`	busybox	== None	== 1.33.1

Vulnerable and fixed packages

Source package	Branch	Version	Maintainer	Status
busybox	3.11-main	1.31.1-r11	Natanael Copa <ncopa@alpinelinux.org>	fixed
busybox	3.14-main	1.33.1-r8	Natanael Copa <ncopa@alpinelinux.org>	fixed