Amazon Linux 2 Security Advisory: ALAS2KERNEL-5.4-2022-034
Advisory Released Date: 2022-08-18
Advisory Updated Date: 2025-05-21
FAQs regarding Amazon Linux ALAS/CVE Severity
An out-of-bounds write flaw was found in the Linux kernel’s framebuffer-based console driver functionality in the way a user triggers ioctl FBIOPUT_VSCREENINFO with malicious data. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2021-33655)
A bug in the IMA subsystem was discovered which would incorrectly allow kexec to be used when kernel lockdown was enabled (CVE-2022-21505)
A heap buffer overflow flaw was found in the Linux kernel's Netfilter subsystem in the way a user provides incorrect input of the NFT_DATA_VERDICT type. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-34918)
An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879)
A memory corruption flaw was found in the Linux kernel's Netfilter subsystem in the way a local user uses the libnetfilter_queue when analyzing a corrupted network packet. This flaw allows a local user to crash the system or a remote user to crash the system when the libnetfilter_queue is used by a local user. (CVE-2022-36946)
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix race condition between ext4_write and ext4_convert_inline_data (CVE-2022-49414)
In the Linux kernel, the following vulnerability has been resolved:
mm/mempolicy: fix uninit-value in mpol_rebind_policy() (CVE-2022-49567)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_max_reordering. (CVE-2022-49571)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_slow_start_after_idle. (CVE-2022-49572)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_early_retrans. (CVE-2022-49573)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_recovery. (CVE-2022-49574)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts. (CVE-2022-49575)
In the Linux kernel, the following vulnerability has been resolved:
udp: Fix a data-race around sysctl_udp_l3mdev_accept. (CVE-2022-49577)
In the Linux kernel, the following vulnerability has been resolved:
ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh. (CVE-2022-49580)
In the Linux kernel, the following vulnerability has been resolved:
iavf: Fix handling of dummy receive descriptors (CVE-2022-49583)
In the Linux kernel, the following vulnerability has been resolved:
ixgbe: Add locking to prevent panic when setting sriov_numvfs to zero (CVE-2022-49584)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_fastopen. (CVE-2022-49586)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_notsent_lowat. (CVE-2022-49587)
In the Linux kernel, the following vulnerability has been resolved:
igmp: Fix data-races around sysctl_igmp_qrv. (CVE-2022-49589)
In the Linux kernel, the following vulnerability has been resolved:
igmp: Fix data-races around sysctl_igmp_llm_reports. (CVE-2022-49590)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_probe_interval. (CVE-2022-49593)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_mtu_probe_floor. (CVE-2022-49594)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix a data-race around sysctl_tcp_probe_threshold. (CVE-2022-49595)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_min_snd_mss. (CVE-2022-49596)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_base_mss. (CVE-2022-49597)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix data-races around sysctl_tcp_mtu_probing. (CVE-2022-49598)
In the Linux kernel, the following vulnerability has been resolved:
tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept. (CVE-2022-49601)
In the Linux kernel, the following vulnerability has been resolved:
ip: Fix a data-race around sysctl_fwmark_reflect. (CVE-2022-49602)
In the Linux kernel, the following vulnerability has been resolved:
ip: Fix data-races around sysctl_ip_fwd_use_pmtu. (CVE-2022-49604)
In the Linux kernel, the following vulnerability has been resolved:
perf/core: Fix data race between perf_event_set_output() and perf_mmap_close() (CVE-2022-49607)
In the Linux kernel, the following vulnerability has been resolved:
pinctrl: ralink: Check for null return of devm_kcalloc (CVE-2022-49608)
In the Linux kernel, the following vulnerability has been resolved:
net: tipc: fix possible refcount leak in tipc_sk_create() (CVE-2022-49620)
In the Linux kernel, the following vulnerability has been resolved:
raw: Fix a data-race around sysctl_raw_l3mdev_accept. (CVE-2022-49631)
In the Linux kernel, the following vulnerability has been resolved:
ipv4: Fix a data-race around sysctl_fib_sync_mem. (CVE-2022-49637)
In the Linux kernel, the following vulnerability has been resolved:
icmp: Fix data-races around sysctl. (CVE-2022-49638)
In the Linux kernel, the following vulnerability has been resolved:
cipso: Fix data-races around sysctl. (CVE-2022-49639)
In the Linux kernel, the following vulnerability has been resolved:
ima: Fix a potential integer overflow in ima_appraise_measurement (CVE-2022-49643)
In the Linux kernel, the following vulnerability has been resolved:
cgroup: Use separate src/dst nodes when preloading css_sets for migration (CVE-2022-49647)
In the Linux kernel, the following vulnerability has been resolved:
xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue (CVE-2022-49649)
In the Linux kernel, the following vulnerability has been resolved:
usbnet: fix memory leak in error case (CVE-2022-49657)
In the Linux kernel, the following vulnerability has been resolved:
mm/slub: add missing TID updates on slab deactivation (CVE-2022-49700)
A NULL pointer dereference issue was found in the SCTP network protocol in net/sctp/stream_sched.c in the Linux kernel. If stream_in allocation fails, stream_out is freed, which would be accessed further. This flaw allows a local user to crash the system or potentially cause a denial of service. (CVE-2023-2177)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 - Kernel-5.4 Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system.
aarch64:
kernel-5.4.209-116.363.amzn2.aarch64
kernel-headers-5.4.209-116.363.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.4.209-116.363.amzn2.aarch64
perf-5.4.209-116.363.amzn2.aarch64
perf-debuginfo-5.4.209-116.363.amzn2.aarch64
python-perf-5.4.209-116.363.amzn2.aarch64
python-perf-debuginfo-5.4.209-116.363.amzn2.aarch64
kernel-tools-5.4.209-116.363.amzn2.aarch64
kernel-tools-devel-5.4.209-116.363.amzn2.aarch64
kernel-tools-debuginfo-5.4.209-116.363.amzn2.aarch64
bpftool-5.4.209-116.363.amzn2.aarch64
bpftool-debuginfo-5.4.209-116.363.amzn2.aarch64
kernel-devel-5.4.209-116.363.amzn2.aarch64
kernel-debuginfo-5.4.209-116.363.amzn2.aarch64
i686:
kernel-headers-5.4.209-116.363.amzn2.i686
src:
kernel-5.4.209-116.363.amzn2.src
x86_64:
kernel-5.4.209-116.363.amzn2.x86_64
kernel-headers-5.4.209-116.363.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.4.209-116.363.amzn2.x86_64
perf-5.4.209-116.363.amzn2.x86_64
perf-debuginfo-5.4.209-116.363.amzn2.x86_64
python-perf-5.4.209-116.363.amzn2.x86_64
python-perf-debuginfo-5.4.209-116.363.amzn2.x86_64
kernel-tools-5.4.209-116.363.amzn2.x86_64
kernel-tools-devel-5.4.209-116.363.amzn2.x86_64
kernel-tools-debuginfo-5.4.209-116.363.amzn2.x86_64
bpftool-5.4.209-116.363.amzn2.x86_64
bpftool-debuginfo-5.4.209-116.363.amzn2.x86_64
kernel-devel-5.4.209-116.363.amzn2.x86_64
kernel-debuginfo-5.4.209-116.363.amzn2.x86_64
2025-05-21: CVE-2022-49597 was added to this advisory.
2025-05-21: CVE-2022-49639 was added to this advisory.
2025-05-21: CVE-2022-49587 was added to this advisory.
2025-05-21: CVE-2022-49602 was added to this advisory.
2025-05-21: CVE-2022-49584 was added to this advisory.
2025-05-21: CVE-2022-49601 was added to this advisory.
2025-05-21: CVE-2022-49586 was added to this advisory.
2025-05-21: CVE-2022-49608 was added to this advisory.
2025-05-21: CVE-2022-49593 was added to this advisory.
2025-05-21: CVE-2022-49573 was added to this advisory.
2025-05-21: CVE-2022-49643 was added to this advisory.
2025-05-21: CVE-2022-49574 was added to this advisory.
2025-05-21: CVE-2022-49649 was added to this advisory.
2025-05-21: CVE-2022-49575 was added to this advisory.
2025-05-21: CVE-2022-49598 was added to this advisory.
2025-05-21: CVE-2022-49604 was added to this advisory.
2025-05-21: CVE-2022-49620 was added to this advisory.
2025-05-21: CVE-2022-49637 was added to this advisory.
2025-05-21: CVE-2022-49571 was added to this advisory.
2025-05-21: CVE-2022-49607 was added to this advisory.
2025-05-21: CVE-2022-49596 was added to this advisory.
2025-03-13: CVE-2022-49580 was added to this advisory.
2025-03-13: CVE-2022-49567 was added to this advisory.
2025-03-13: CVE-2022-49657 was added to this advisory.
2025-03-13: CVE-2022-49589 was added to this advisory.
2025-03-13: CVE-2022-49631 was added to this advisory.
2025-03-13: CVE-2022-49583 was added to this advisory.
2025-03-13: CVE-2022-49590 was added to this advisory.
2025-03-13: CVE-2022-49594 was added to this advisory.
2025-03-13: CVE-2022-49647 was added to this advisory.
2025-03-13: CVE-2022-49595 was added to this advisory.
2025-03-13: CVE-2022-49414 was added to this advisory.
2025-03-13: CVE-2022-49700 was added to this advisory.
2025-03-13: CVE-2022-49572 was added to this advisory.
2025-03-13: CVE-2022-49638 was added to this advisory.
2025-03-13: CVE-2022-49577 was added to this advisory.