QID 355613

Date Published: 2023-07-24

QID 355613: Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2023-049

A use-after-free flaw was found in the netfilter subsystem of the linux kernel when processing named and anonymous sets in batch requests, which can lead to performing arbitrary reads and writes in kernel memory.
This flaw allows a local user with cap_net_admin capability to crash or potentially escalate their privileges on the system. (
( CVE-2023-3117) linux kernel nftables out-of-bounds read/write vulnerability; nft_byteorder poorly handled vm register contents when cap_net_admin is in any user or network namespace (cve-2023-35001)

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

CVSS V3 rated as High - 7.8 severity.

CVSS V2 rated as Medium - 5.4 severity.

Solution

Please refer to Amazon advisory: ALAS2KERNEL-5.4-2023-049 for affected packages and patching details, or update with your package manager.

Vendor References

ALAS2KERNEL-5.4-2023-049 - alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2023-049.html

CVEs related to QID 355613

CVE-2023-35001 | CVE-2023-3117 |

Software Advisories

Advisory ID	Software	Component	Link
ALAS2KERNEL-5.4-2023-049	amazon linux 2		alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2023-049.html

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