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RHEL 7 : kpatch-patch (RHSA-2020:2519)
high Nessus Plugin ID 170327
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Synopsis
The remote Red Hat host is missing one or more security updates for kpatch-patch.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2519 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: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic (CVE-2020-10711)
* kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c (CVE-2019-19768)
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 these issues 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-2020:2519.See Also
http://www.nessus.org/u?3c6e872b
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/errata/RHSA-2020:2519
Plugin Details
Severity: High
ID: 170327
File Name: redhat-RHSA-2020-2519.nasl
Version: 1.4
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 1/23/2023
Updated: 11/7/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2019-19768
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_3, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_21_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_12_1, cpe:/o:redhat:rhel_eus:7.7, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_18_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_9_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_7_1
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: 6/12/2020
Vulnerability Publication Date: 12/12/2019
Reference Information
CVE: CVE-2019-19768, CVE-2020-10711