Detections
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RHEL 8 : kpatch-patch (RHSA-2021:0763)
high Nessus Plugin ID 147215
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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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0763 advisory.- kernel: bad kfree in auditfilter.c may lead to escalation of privilege (CVE-2020-0444)
- kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
- kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)
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-2021:0763.See Also
http://www.nessus.org/u?a931be1f
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/errata/RHSA-2021:0763
https://bugzilla.redhat.com/show_bug.cgi?id=1877571
Plugin Details
Severity: High
ID: 147215
File Name: redhat-RHSA-2021-0763.nasl
Version: 1.11
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 3/9/2021
Updated: 4/28/2024
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-29661
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
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:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:rhel_eus:8.2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_13_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_14_3, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_19_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_1_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_28_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_29_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_37_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_40_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_41_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_6_3
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: 3/9/2021
Vulnerability Publication Date: 9/9/2020