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Amazon Linux 2 : kernel (ALASKERNEL-5.4-2023-055)
medium Nessus Plugin ID 184177
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Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of kernel installed on the remote host is prior to 5.4.258-171.360. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-055 advisory.2024-07-03: CVE-2023-52573 was added to this advisory.
2024-07-03: CVE-2023-52522 was added to this advisory.
2024-07-03: CVE-2023-52578 was added to this advisory.
2024-07-03: CVE-2023-42756 was added to this advisory.
2024-07-03: CVE-2023-52574 was added to this advisory.
2024-06-06: CVE-2023-52567 was added to this advisory.
An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
(CVE-2023-31085)
A flaw in the kernel Xen event handler can cause a deadlock with Xen console handling in unprivileged Xen guests. (CVE-2023-34324)
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)
In the Linux kernel, the following vulnerability has been resolved:
net: fix possible store tearing in neigh_periodic_work() (CVE-2023-52522)
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)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update kernel' to update your system.See Also
https://alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2023-055.html
https://alas.aws.amazon.com/faqs.html
https://alas.aws.amazon.com/cve/html/CVE-2023-31085.html
https://alas.aws.amazon.com/cve/html/CVE-2023-34324.html
https://alas.aws.amazon.com/cve/html/CVE-2023-42754.html
https://alas.aws.amazon.com/cve/html/CVE-2023-42756.html
https://alas.aws.amazon.com/cve/html/CVE-2023-52522.html
https://alas.aws.amazon.com/cve/html/CVE-2023-52567.html
https://alas.aws.amazon.com/cve/html/CVE-2023-52573.html
Plugin Details
Severity: Medium
ID: 184177
File Name: al2_ALASKERNEL-5_4-2023-055.nasl
Version: 1.6
Type: local
Agent: unix
Published: 11/1/2023
Updated: 7/5/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 4.8
Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:N/A:C
CVSS Score Source: CVE-2023-34324
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2023-42754
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:python-perf-debuginfo, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-headers, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:python-perf
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/31/2023
Vulnerability Publication Date: 4/24/2023
Reference Information
CVE: CVE-2023-31085, CVE-2023-34324, CVE-2023-42754, CVE-2023-42756, CVE-2023-52522, CVE-2023-52567, CVE-2023-52573, CVE-2023-52574, CVE-2023-52578