CVE-2021-42375 — Improper Handling of Invalid Use of Special Elements in Busybox
Severity
5.5MEDIUMNVD
EPSS
0.1%
top 81.04%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 15
Latest updateJun 15
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
Also affects: Fedora 33, 34
🔴Vulnerability Details
2GHSA▶
GHSA-h7xx-2pfg-qqhm: 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 shel↗2022-05-24
OSV▶
CVE-2021-42375: 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 shel↗2021-11-15