Amazon Linux 2 Security Advisory: ALASKERNEL-5.15-2023-028
Advisory Release Date: 2023-10-12 17:29 Pacific
Advisory Updated Date: 2024-07-03 22:01 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
2024-07-03: CVE-2023-52574 was added to this advisory.
2024-07-03: CVE-2023-52580 was added to this advisory.
2024-07-03: CVE-2023-52578 was added to this advisory.
2024-07-03: CVE-2023-52573 was added to this advisory.
2024-06-06: CVE-2023-52567 was added to this advisory.
2024-06-06: CVE-2023-52482 was added to this advisory.
2024-06-06: CVE-2023-52501 was added to this advisory.
2024-03-27: CVE-2023-52433 was added to this advisory.
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability.
We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8. (CVE-2023-4244)
A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system. (CVE-2023-42754)
A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of `__ip_set_put` on a wrong `set`. This issue may allow a local user to crash the system. (CVE-2023-42756)
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)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction
New elements in this transaction might expired before such transaction
ends. Skip sync GC for such elements otherwise commit path might walk
over an already released object. Once transaction is finished, async GC
will collect such expired element. (CVE-2023-52433)
In the Linux kernel, the following vulnerability has been resolved:
x86/srso: Add SRSO mitigation for Hygon processors (CVE-2023-52482)
In the Linux kernel, the following vulnerability has been resolved:
ring-buffer: Do not attempt to read past "commit" (CVE-2023-52501)
In the Linux kernel, the following vulnerability has been resolved:
serial: 8250_port: Check IRQ data before use (CVE-2023-52567)
In the Linux kernel, the following vulnerability has been resolved:
net: rds: Fix possible NULL-pointer dereference (CVE-2023-52573)
In the Linux kernel, the following vulnerability has been resolved:
team: fix null-ptr-deref when team device type is changed (CVE-2023-52574)
In the Linux kernel, the following vulnerability has been resolved:
net: bridge: use DEV_STATS_INC() (CVE-2023-52578)
In the Linux kernel, the following vulnerability has been resolved:
net/core: Fix ETH_P_1588 flow dissector (CVE-2023-52580)
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-5.15.134-87.145.amzn2.aarch64
kernel-headers-5.15.134-87.145.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.15.134-87.145.amzn2.aarch64
perf-5.15.134-87.145.amzn2.aarch64
perf-debuginfo-5.15.134-87.145.amzn2.aarch64
python-perf-5.15.134-87.145.amzn2.aarch64
python-perf-debuginfo-5.15.134-87.145.amzn2.aarch64
kernel-tools-5.15.134-87.145.amzn2.aarch64
kernel-tools-devel-5.15.134-87.145.amzn2.aarch64
kernel-tools-debuginfo-5.15.134-87.145.amzn2.aarch64
bpftool-5.15.134-87.145.amzn2.aarch64
bpftool-debuginfo-5.15.134-87.145.amzn2.aarch64
kernel-devel-5.15.134-87.145.amzn2.aarch64
kernel-debuginfo-5.15.134-87.145.amzn2.aarch64
kernel-livepatch-5.15.134-87.145-1.0-0.amzn2.aarch64
i686:
kernel-headers-5.15.134-87.145.amzn2.i686
src:
kernel-5.15.134-87.145.amzn2.src
x86_64:
kernel-5.15.134-87.145.amzn2.x86_64
kernel-headers-5.15.134-87.145.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.15.134-87.145.amzn2.x86_64
perf-5.15.134-87.145.amzn2.x86_64
perf-debuginfo-5.15.134-87.145.amzn2.x86_64
python-perf-5.15.134-87.145.amzn2.x86_64
python-perf-debuginfo-5.15.134-87.145.amzn2.x86_64
kernel-tools-5.15.134-87.145.amzn2.x86_64
kernel-tools-devel-5.15.134-87.145.amzn2.x86_64
kernel-tools-debuginfo-5.15.134-87.145.amzn2.x86_64
bpftool-5.15.134-87.145.amzn2.x86_64
bpftool-debuginfo-5.15.134-87.145.amzn2.x86_64
kernel-devel-5.15.134-87.145.amzn2.x86_64
kernel-debuginfo-5.15.134-87.145.amzn2.x86_64
kernel-livepatch-5.15.134-87.145-1.0-0.amzn2.x86_64