7.8

CVE-2023-32233

In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.

Data is provided by the National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 3.13 < 4.14.315
LinuxLinux Kernel Version >= 4.15 < 4.19.283
LinuxLinux Kernel Version >= 4.20 < 5.4.243
LinuxLinux Kernel Version >= 5.5 < 5.10.180
LinuxLinux Kernel Version >= 5.11 < 5.15.111
LinuxLinux Kernel Version >= 5.16 < 6.1.28
LinuxLinux Kernel Version >= 6.2 < 6.2.15
LinuxLinux Kernel Version >= 6.3 < 6.3.2
RedhatEnterprise Linux Version7.0
RedhatEnterprise Linux Version8.0
RedhatEnterprise Linux Version9.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.49% 0.647
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.