7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:S/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
5.3%
Issue Overview:
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. (CVE-2023-32233)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system.
New Packages:
aarch64:
kernel-4.14.314-238.539.amzn2.aarch64
kernel-headers-4.14.314-238.539.amzn2.aarch64
kernel-debuginfo-common-aarch64-4.14.314-238.539.amzn2.aarch64
perf-4.14.314-238.539.amzn2.aarch64
perf-debuginfo-4.14.314-238.539.amzn2.aarch64
python-perf-4.14.314-238.539.amzn2.aarch64
python-perf-debuginfo-4.14.314-238.539.amzn2.aarch64
kernel-tools-4.14.314-238.539.amzn2.aarch64
kernel-tools-devel-4.14.314-238.539.amzn2.aarch64
kernel-tools-debuginfo-4.14.314-238.539.amzn2.aarch64
kernel-devel-4.14.314-238.539.amzn2.aarch64
kernel-debuginfo-4.14.314-238.539.amzn2.aarch64
i686:
kernel-headers-4.14.314-238.539.amzn2.i686
src:
kernel-4.14.314-238.539.amzn2.src
x86_64:
kernel-4.14.314-238.539.amzn2.x86_64
kernel-headers-4.14.314-238.539.amzn2.x86_64
kernel-debuginfo-common-x86_64-4.14.314-238.539.amzn2.x86_64
perf-4.14.314-238.539.amzn2.x86_64
perf-debuginfo-4.14.314-238.539.amzn2.x86_64
python-perf-4.14.314-238.539.amzn2.x86_64
python-perf-debuginfo-4.14.314-238.539.amzn2.x86_64
kernel-tools-4.14.314-238.539.amzn2.x86_64
kernel-tools-devel-4.14.314-238.539.amzn2.x86_64
kernel-tools-debuginfo-4.14.314-238.539.amzn2.x86_64
kernel-devel-4.14.314-238.539.amzn2.x86_64
kernel-debuginfo-4.14.314-238.539.amzn2.x86_64
kernel-livepatch-4.14.314-238.539-1.0-0.amzn2.x86_64
Red Hat: CVE-2023-32233
Mitre: CVE-2023-32233
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:S/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
5.3%