ALAS-2023-160

Amazon Linux 2023 Security Advisory: ALAS-2023-160
Advisory Release Date: 2023-04-13 17:56 Pacific
Advisory Updated Date: 2023-10-10 19:32 Pacific
Severity: Medium
Issue Overview:

2023-10-10: CVE-2023-1611 was added to this advisory.

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition. (CVE-2022-4269)

A NULL pointer dereference has been discovered in the Linux Kernel, in io_file_bitmap_get in io_uring/filetable.c. (CVE-2023-1583)

A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel. This flaw allows an attacker to crash the system and possibly cause a kernel information lea (CVE-2023-1611)

An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data->block[0]" variable was not capped to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to crash the system or potentially achieve code execution. (CVE-2023-2194)


Affected Packages:

kernel


Issue Correction:
Run dnf update kernel --releasever=2023.0.20230419 to update your system.

New Packages:
aarch64:
    python3-perf-debuginfo-6.1.23-36.46.amzn2023.aarch64
    kernel-libbpf-static-6.1.23-36.46.amzn2023.aarch64
    kernel-libbpf-devel-6.1.23-36.46.amzn2023.aarch64
    python3-perf-6.1.23-36.46.amzn2023.aarch64
    kernel-livepatch-6.1.23-36.46-1.0-0.amzn2023.aarch64
    bpftool-debuginfo-6.1.23-36.46.amzn2023.aarch64
    kernel-libbpf-6.1.23-36.46.amzn2023.aarch64
    kernel-tools-debuginfo-6.1.23-36.46.amzn2023.aarch64
    kernel-tools-6.1.23-36.46.amzn2023.aarch64
    bpftool-6.1.23-36.46.amzn2023.aarch64
    perf-debuginfo-6.1.23-36.46.amzn2023.aarch64
    kernel-tools-devel-6.1.23-36.46.amzn2023.aarch64
    perf-6.1.23-36.46.amzn2023.aarch64
    kernel-headers-6.1.23-36.46.amzn2023.aarch64
    kernel-debuginfo-6.1.23-36.46.amzn2023.aarch64
    kernel-6.1.23-36.46.amzn2023.aarch64
    kernel-debuginfo-common-aarch64-6.1.23-36.46.amzn2023.aarch64
    kernel-devel-6.1.23-36.46.amzn2023.aarch64

src:
    kernel-6.1.23-36.46.amzn2023.src

x86_64:
    bpftool-debuginfo-6.1.23-36.46.amzn2023.x86_64
    kernel-libbpf-static-6.1.23-36.46.amzn2023.x86_64
    bpftool-6.1.23-36.46.amzn2023.x86_64
    perf-6.1.23-36.46.amzn2023.x86_64
    kernel-libbpf-6.1.23-36.46.amzn2023.x86_64
    kernel-livepatch-6.1.23-36.46-1.0-0.amzn2023.x86_64
    kernel-libbpf-devel-6.1.23-36.46.amzn2023.x86_64
    kernel-tools-6.1.23-36.46.amzn2023.x86_64
    kernel-tools-devel-6.1.23-36.46.amzn2023.x86_64
    perf-debuginfo-6.1.23-36.46.amzn2023.x86_64
    python3-perf-6.1.23-36.46.amzn2023.x86_64
    kernel-tools-debuginfo-6.1.23-36.46.amzn2023.x86_64
    python3-perf-debuginfo-6.1.23-36.46.amzn2023.x86_64
    kernel-headers-6.1.23-36.46.amzn2023.x86_64
    kernel-debuginfo-6.1.23-36.46.amzn2023.x86_64
    kernel-6.1.23-36.46.amzn2023.x86_64
    kernel-debuginfo-common-x86_64-6.1.23-36.46.amzn2023.x86_64
    kernel-devel-6.1.23-36.46.amzn2023.x86_64

Additional References

Red Hat: CVE-2022-4269, CVE-2023-1583, CVE-2023-1611, CVE-2023-2194

Mitre: CVE-2022-4269, CVE-2023-1583, CVE-2023-1611, CVE-2023-2194