vulnerability
Amazon Linux AMI 2: CVE-2023-3777: Security patch for kernel, kernel-livepatch-5.10.186-179.751 (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Sep 6, 2023 | Sep 21, 2023 | May 20, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Sep 6, 2023
Added
Sep 21, 2023
Modified
May 20, 2026
Description
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances.
We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.
Solutions
amazon-linux-ami-2-upgrade-bpftoolamazon-linux-ami-2-upgrade-bpftool-debuginfoamazon-linux-ami-2-upgrade-kernelamazon-linux-ami-2-upgrade-kernel-debuginfoamazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-kernel-develamazon-linux-ami-2-upgrade-kernel-headersamazon-linux-ami-2-upgrade-kernel-livepatch-5-10-186-179-751amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-186-179-751-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-5-10-192-182-736amazon-linux-ami-2-upgrade-kernel-livepatch-5-15-128-80-144amazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-perfamazon-linux-ami-2-upgrade-perf-debuginfoamazon-linux-ami-2-upgrade-python-perfamazon-linux-ami-2-upgrade-python-perf-debuginfo
References
- AMAZON-AL2/ALAS2KERNEL-5.10-2023-039
- AMAZON-AL2/ALAS2KERNEL-5.15-2023-026
- AMAZON-AL2/ALAS2LIVEPATCH-2023-155
- AMAZON-AL2/ALASKERNEL-5.10-2023-039
- AMAZON-AL2/ALASKERNEL-5.15-2023-026
- AMAZON-AL2/ALASLIVEPATCH-2023-155
- CVE-2023-3777
- https://attackerkb.com/topics/CVE-2023-3777
- CWE-416
- EUVD-EUVD-2023-44410
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-44410
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.