vulnerability
Amazon Linux AMI 2: CVE-2021-33909: Security patch for kernel, kernel-livepatch-4.14.231-173.360, kernel-livepatch-4.14.231-173.361, kernel-livepatch-4.14.232-176.381, kernel-livepatch-4.14.232-177.418, kernel-livepatch-4.14.238-182.421 (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | 2021-07-20 | 2021-07-22 | 2024-11-26 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
2021-07-20
Added
2021-07-22
Modified
2024-11-26
Description
fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.
Solution(s)
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-4-14-231-173-360amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-231-173-360-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-231-173-361amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-231-173-361-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-176-381amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-176-381-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-177-418amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-177-418-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-238-182-421amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-238-182-421-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-238-182-422amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-50-44-132amazon-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/ALAS-2021-1691
- AMAZON-AL2/ALASKERNEL-5.10-2022-003
- AMAZON-AL2/ALASKERNEL-5.4-2022-005
- AMAZON-AL2/ALASLIVEPATCH-2021-055
- AMAZON-AL2/ALASLIVEPATCH-2021-056
- AMAZON-AL2/ALASLIVEPATCH-2021-057
- AMAZON-AL2/ALASLIVEPATCH-2021-058
- AMAZON-AL2/ALASLIVEPATCH-2021-059
- CVE-2021-33909
- https://attackerkb.com/topics/CVE-2021-33909
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