7.2

CVE-2021-42378

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 getvar_i function

Data is provided by the National Vulnerability Database (NVD)
Busybox ≫ Busybox Version >= 1.16.0 <= 1.33.1
Fedoraproject ≫ Fedora Version33
Fedoraproject ≫ Fedora Version34
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.15% 0.354
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.2 1.2 5.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 6.5 8 6.4
AV:N/AC:L/Au:S/C:P/I:P/A:P
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.2 1.2 5.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.