RHEL 8 : kernel (RHSA-2021:1093)
high Nessus Plugin ID 148370
Language:
Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1093 advisory.- kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)
- Kernel: KVM: host stack overflow due to lazy update IOAPIC (CVE-2020-27152)
- kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)
- kernel: race conditions caused by wrong locking in net/vmw_vsock/af_vsock.c (CVE-2021-26708)
- kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363)
- kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)
- kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)
- kernel: Use after free via PI futex state (CVE-2021-3347)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://cwe.mitre.org/data/definitions/20.html
https://cwe.mitre.org/data/definitions/122.html
https://cwe.mitre.org/data/definitions/125.html
https://cwe.mitre.org/data/definitions/200.html
https://cwe.mitre.org/data/definitions/250.html
https://cwe.mitre.org/data/definitions/362.html
https://cwe.mitre.org/data/definitions/416.html
https://cwe.mitre.org/data/definitions/835.html
https://access.redhat.com/security/cve/CVE-2020-0466
https://access.redhat.com/security/cve/CVE-2020-27152
https://access.redhat.com/security/cve/CVE-2020-28374
https://access.redhat.com/security/cve/CVE-2021-3347
https://access.redhat.com/security/cve/CVE-2021-26708
https://access.redhat.com/security/cve/CVE-2021-27363
https://access.redhat.com/security/cve/CVE-2021-27364
https://access.redhat.com/security/cve/CVE-2021-27365
https://access.redhat.com/errata/RHSA-2021:1093
https://bugzilla.redhat.com/1888886
https://bugzilla.redhat.com/1899804
https://bugzilla.redhat.com/1920480
https://bugzilla.redhat.com/1922249
https://bugzilla.redhat.com/1925588
https://bugzilla.redhat.com/1930078
Plugin Details
Severity: High
ID: 148370
File Name: redhat-RHSA-2021-1093.nasl
Version: 1.5
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/7/2021
Updated: 5/10/2022
Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent
Risk Information
VPR
Risk Factor: Critical
Score: 9
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Temporal Vector: E:U/RL:OF/RC:C
CVSS Score Source: CVE-2021-3347
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: E:U/RL:O/RC:C
CVSS Score Source: CVE-2020-28374
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_aus:8.4, cpe:/o:redhat:rhel_e4s:8.4, cpe:/o:redhat:rhel_eus:8.4, cpe:/o:redhat:rhel_tus:8.4, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, 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-modules, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:perf, 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 Ease: No known exploits are available
Patch Publication Date: 4/6/2021
Vulnerability Publication Date: 11/6/2020
Reference Information
CVE: CVE-2020-0466, CVE-2020-27152, CVE-2020-28374, CVE-2021-3347, CVE-2021-26708, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365