ALASLIVEPATCH-2023-023


Amazon Linux 2023 Security Advisory: ALASLIVEPATCH-2023-023
Advisory Release Date: 2023-12-06 07:53 Pacific
Advisory Updated Date: 2023-12-14 21:40 Pacific
Severity: Important

Issue Overview:

x86: KVM: SVM: always update the x2avic msr interception (CVE-2023-5090)

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-free.

We recommend upgrading past commit f15f29fd4779be8a418b66e9d52979bb6d6c2325. (CVE-2023-5197)

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation.

If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer.

We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)


Affected Packages:

kernel-livepatch-6.1.55-75.123


Issue Correction:
Please ensure you have live patching enabled.
Run dnf update kernel-livepatch-6.1.55-75.123 to update your system.

New Packages:
aarch64:
    kernel-livepatch-6.1.55-75.123-1.0-1.amzn2023.aarch64

src:
    kernel-livepatch-6.1.55-75.123-1.0-1.amzn2023.src

x86_64:
    kernel-livepatch-6.1.55-75.123-1.0-1.amzn2023.x86_64