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RHEL 8 : kernel (RHSA-2022:5819)
high Nessus Plugin ID 163793
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Synopsis
The remote Red Hat host is missing one or more security updates for kernel.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:5819 advisory.The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak (CVE-2022-1012)
* kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-32250)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
* Softirq hrtimers are being placed on the per-CPU softirq clocks on isolcpus. (BZ#2090484)
* enable/disable multiqueues repeatedly while ping local host, guest kernel panic (BZ#2093416)
* Backport kernel audit enhancements and fixes from v5.13-rc1 to v5.16-rc6 (BZ#2095434)
* blk_update_request: I/O error, dev nvme0n3, during xfs creation (BZ#2100150)
* SCSI updates for RHEL 8.7 (BZ#2100254)
* Kernel bug on mm/slub.c:314 (BZ#2102251)
* Implement new tc action for check_pkt_len (BZ#2102333)
* too long timeout value with TIME_WAIT status of conntrack entry (BZ#2104002)
* Connectx6-DX, mlx5 , backport 087032ee7021 (net/mlx5e: TC, Fix ct_clear overwriting ct action metadata) (BZ#2104012)
* mlx5: Software steering memory allocation failure, netperf TCP_CRR with ct(). (BZ#2104013)
* tcp: request_sock leak in Calico OCP (BZ#2104670)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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
Update the RHEL kernel package based on the guidance in RHSA-2022:5819.See Also
http://www.nessus.org/u?f8cfd08c
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/errata/RHSA-2022:5819
Plugin Details
Severity: High
ID: 163793
File Name: redhat-RHSA-2022-5819.nasl
Version: 1.13
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 8/3/2022
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.4
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 6.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2022-32250
CVSS v3
Risk Factor: High
Base Score: 8.2
Temporal Score: 7.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
CVSS Score Source: CVE-2022-1012
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-headers, cpe:/o:redhat:rhel_eus:8.6, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:python3-perf
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/3/2022
Vulnerability Publication Date: 6/2/2022
Reference Information
CVE: CVE-2022-1012, CVE-2022-32250