vulnerability
Amazon Linux AMI 2: CVE-2021-3764: Security patch for kernel, microvm-kernel (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Nov 5, 2021 | Nov 5, 2021 | May 14, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Nov 5, 2021
Added
Nov 5, 2021
Modified
May 14, 2025
Description
A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.
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-4-14-252-195-481amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-75-79-358amazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-microvm-kernelamazon-linux-ami-2-upgrade-microvm-kernel-debuginfoamazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-microvm-kernel-develamazon-linux-ami-2-upgrade-microvm-kernel-headersamazon-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/ALAS-2021-1719
- AMAZON-AL2/ALASKERNEL-5.10-2022-007
- AMAZON-AL2/ALASKERNEL-5.4-2022-009
- AMAZON-AL2/ALASKERNEL-5.4-2022-027
- AMAZON-AL2/ALASKERNEL-5.4-2022-029
- AMAZON-AL2/ALASKERNEL-5.4-2022-031
- AMAZON-AL2/ALASKERNEL-5.4-2025-099
- AMAZON-AL2/ALASMICROVM-KERNEL-4.14-2023-001
- CVE-2021-3764
- https://attackerkb.com/topics/CVE-2021-3764
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