Amazon Linux 2 Security Advisory: ALAS2KERNEL-5.15-2022-007
Advisory Released Date: 2022-09-12
Advisory Updated Date: 2025-05-21
FAQs regarding Amazon Linux ALAS/CVE Severity
An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462)
A bug in the IMA subsystem was discovered which would incorrectly allow kexec to be used when kernel lockdown was enabled (CVE-2022-21505)
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:
mm/mempolicy: fix uninit-value in mpol_rebind_policy() (CVE-2022-49567)
In the Linux kernel, the following vulnerability has been resolved:
KVM: Don't null dereference ops->destroy (CVE-2022-49568)
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:
ipv4: Fix data-races around sysctl_fib_multipath_hash_fields. (CVE-2022-49576)
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:
ip: Fix data-races around sysctl_ip_prot_sock. (CVE-2022-49578)
In the Linux kernel, the following vulnerability has been resolved:
ipv4: Fix data-races around sysctl_fib_multipath_hash_policy. (CVE-2022-49579)
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:
tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout. (CVE-2022-49585)
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:
tcp: Fix data-races around sysctl_tcp_migrate_req. (CVE-2022-49588)
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: Fix data-races around sysctl_tcp_l3mdev_accept. (CVE-2022-49599)
In the Linux kernel, the following vulnerability has been resolved:
ip: Fix a data-race around sysctl_ip_autobind_reuse. (CVE-2022-49600)
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_update_priority. (CVE-2022-49603)
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)
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-5.15 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-5.15.59-33.133.amzn2.aarch64
kernel-headers-5.15.59-33.133.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.15.59-33.133.amzn2.aarch64
perf-5.15.59-33.133.amzn2.aarch64
perf-debuginfo-5.15.59-33.133.amzn2.aarch64
python-perf-5.15.59-33.133.amzn2.aarch64
python-perf-debuginfo-5.15.59-33.133.amzn2.aarch64
kernel-tools-5.15.59-33.133.amzn2.aarch64
kernel-tools-devel-5.15.59-33.133.amzn2.aarch64
kernel-tools-debuginfo-5.15.59-33.133.amzn2.aarch64
bpftool-5.15.59-33.133.amzn2.aarch64
bpftool-debuginfo-5.15.59-33.133.amzn2.aarch64
kernel-devel-5.15.59-33.133.amzn2.aarch64
kernel-debuginfo-5.15.59-33.133.amzn2.aarch64
kernel-livepatch-5.15.59-33.133-1.0-0.amzn2.aarch64
i686:
kernel-headers-5.15.59-33.133.amzn2.i686
src:
kernel-5.15.59-33.133.amzn2.src
x86_64:
kernel-5.15.59-33.133.amzn2.x86_64
kernel-headers-5.15.59-33.133.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.15.59-33.133.amzn2.x86_64
perf-5.15.59-33.133.amzn2.x86_64
perf-debuginfo-5.15.59-33.133.amzn2.x86_64
python-perf-5.15.59-33.133.amzn2.x86_64
python-perf-debuginfo-5.15.59-33.133.amzn2.x86_64
kernel-tools-5.15.59-33.133.amzn2.x86_64
kernel-tools-devel-5.15.59-33.133.amzn2.x86_64
kernel-tools-debuginfo-5.15.59-33.133.amzn2.x86_64
bpftool-5.15.59-33.133.amzn2.x86_64
bpftool-debuginfo-5.15.59-33.133.amzn2.x86_64
kernel-devel-5.15.59-33.133.amzn2.x86_64
kernel-debuginfo-5.15.59-33.133.amzn2.x86_64
kernel-livepatch-5.15.59-33.133-1.0-0.amzn2.x86_64
2025-05-21: CVE-2022-49597 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-2022-49585 was added to this advisory.
2025-05-21: CVE-2022-49568 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-2022-49578 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-2022-49574 was added to this advisory.
2025-05-21: CVE-2022-49575 was added to this advisory.
2025-05-21: CVE-2022-49579 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-2022-49571 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-2022-49589 was added to this advisory.
2025-03-13: CVE-2022-49599 was added to this advisory.
2025-03-13: CVE-2022-49590 was added to this advisory.
2025-03-13: CVE-2022-49595 was added to this advisory.
2025-03-13: CVE-2022-49603 was added to this advisory.
2025-03-13: CVE-2022-49577 was added to this advisory.
2025-03-13: CVE-2022-49588 was added to this advisory.
2025-03-13: CVE-2022-49576 was added to this advisory.
2025-03-13: CVE-2022-49572 was added to this advisory.
2025-03-13: CVE-2022-49600 was added to this advisory.
2025-03-13: CVE-2022-49594 was added to this advisory.