Vulmon
Amazon Linux 2 Security Advisory: ALASKERNEL-5.10-2023-034
Advisory Release Date: 2023-06-21 19:12 Pacific
Advisory Updated Date: 2023-06-29 18:08 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
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 flaw was found in the Linux kernel's networking subsystem within the RPL protocol's handling. This issue results from the improper handling of user-supplied data, which can lead to an assertion failure. This flaw allows an unauthenticated, remote attacker to create a denial of service condition on the system. (CVE-2023-2156)
An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel internal information. (CVE-2023-3268)
An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an offset. (CVE-2023-34256)
An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation. (CVE-2023-35788)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system.
aarch64:
kernel-5.10.184-174.730.amzn2.aarch64
kernel-headers-5.10.184-174.730.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.10.184-174.730.amzn2.aarch64
perf-5.10.184-174.730.amzn2.aarch64
perf-debuginfo-5.10.184-174.730.amzn2.aarch64
python-perf-5.10.184-174.730.amzn2.aarch64
python-perf-debuginfo-5.10.184-174.730.amzn2.aarch64
kernel-tools-5.10.184-174.730.amzn2.aarch64
kernel-tools-devel-5.10.184-174.730.amzn2.aarch64
kernel-tools-debuginfo-5.10.184-174.730.amzn2.aarch64
bpftool-5.10.184-174.730.amzn2.aarch64
bpftool-debuginfo-5.10.184-174.730.amzn2.aarch64
kernel-devel-5.10.184-174.730.amzn2.aarch64
kernel-debuginfo-5.10.184-174.730.amzn2.aarch64
kernel-livepatch-5.10.184-174.730-1.0-0.amzn2.aarch64
i686:
kernel-headers-5.10.184-174.730.amzn2.i686
src:
kernel-5.10.184-174.730.amzn2.src
x86_64:
kernel-5.10.184-174.730.amzn2.x86_64
kernel-headers-5.10.184-174.730.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.10.184-174.730.amzn2.x86_64
perf-5.10.184-174.730.amzn2.x86_64
perf-debuginfo-5.10.184-174.730.amzn2.x86_64
python-perf-5.10.184-174.730.amzn2.x86_64
python-perf-debuginfo-5.10.184-174.730.amzn2.x86_64
kernel-tools-5.10.184-174.730.amzn2.x86_64
kernel-tools-devel-5.10.184-174.730.amzn2.x86_64
kernel-tools-debuginfo-5.10.184-174.730.amzn2.x86_64
bpftool-5.10.184-174.730.amzn2.x86_64
bpftool-debuginfo-5.10.184-174.730.amzn2.x86_64
kernel-devel-5.10.184-174.730.amzn2.x86_64
kernel-debuginfo-5.10.184-174.730.amzn2.x86_64
kernel-livepatch-5.10.184-174.730-1.0-0.amzn2.x86_64