Detections
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RHEL 8 : kpatch-patch (RHSA-2020:2669)
high Nessus Plugin ID 170356
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Synopsis
The remote Red Hat host is missing a security update for kpatch-patch.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2669 advisory.This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
* kernel: use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body (CVE-2020-12657)
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.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
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 RHEL kpatch-patch package based on the guidance in RHSA-2020:2669.See Also
http://www.nessus.org/u?aaff8fe4
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: High
ID: 170356
File Name: redhat-RHSA-2020-2669.nasl
Version: 1.3
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 1/23/2023
Updated: 11/5/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2020-12657
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_3_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_13_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_0_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_5_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_8_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147, cpe:/o:redhat:rhel_eus:8.1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_0_3
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: 6/23/2020
Vulnerability Publication Date: 5/5/2020
Reference Information
CVE: CVE-2020-12657