vulnerability
Amazon Linux AMI: CVE-2021-29155: Security patch for kernel (ALAS-2021-1503)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:P/I:N/A:N) | Apr 20, 2021 | May 26, 2021 | Oct 14, 2022 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
Apr 20, 2021
Added
May 26, 2021
Modified
Oct 14, 2022
Description
An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.
Solution
amazon-linux-upgrade-kernel
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