CVE-2021-42379 — Use After Free in Busybox
Severity
7.2HIGHNVD
OSV7.5
EPSS
0.2%
top 53.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 15
Latest updateJun 15
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 next_input_file function
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 1.2 | Impact: 5.9
Affected Packages7 packages
Also affects: Fedora 33, 34
🔴Vulnerability Details
3GHSA▶
GHSA-qg2h-cx9q-v8wg: 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 next_inpu↗2022-05-24
OSV▶
CVE-2021-42379: 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 next_inpu↗2021-11-15