CVE-2021-42375

Name
CVE-2021-42375
Description
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.
NVD Severity
unknown
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
N/A 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/
CONFIRM https://security.netapp.com/advisory/ntap-20211223-0002/
reefs@jfrog.com https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-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/

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 edge-main 1.34.0_r0 None fixed
busybox edge-main 1.34.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
busybox 3.22-main 1.34.0-r0 None fixed
busybox 3.21-main 1.34.0-r0 None fixed
busybox 3.20-main 1.34.0-r0 None fixed
busybox 3.19-main 1.34.0-r0 None fixed
busybox 3.18-main 1.34.0-r0 None fixed
busybox 3.17-main 1.34.0-r0 None fixed
busybox 3.12-main 1.31.1-r21 Natanael Copa <ncopa@alpinelinux.org> fixed
busybox 3.11-main 1.31.1-r11 Natanael Copa <ncopa@alpinelinux.org> fixed