RHEL 8 : kpatch-patch (RHSA-2021:0763)
high Nessus Plugin ID 147215
Language:
New! Plugin Severity Now Using CVSS v3
The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
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-2021:0763 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 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/99.html
https://cwe.mitre.org/data/definitions/119.html
https://cwe.mitre.org/data/definitions/244.html
https://cwe.mitre.org/data/definitions/416.html
https://cwe.mitre.org/data/definitions/667.html
https://access.redhat.com/security/cve/CVE-2020-0444
https://access.redhat.com/security/cve/CVE-2020-25211
https://access.redhat.com/security/cve/CVE-2020-29661
https://access.redhat.com/errata/RHSA-2021:0763
https://bugzilla.redhat.com/1877571
Plugin Details
Severity: High
ID: 147215
File Name: redhat-RHSA-2021-0763.nasl
Version: 1.5
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 3/9/2021
Updated: 7/26/2021
Dependencies: ssh_get_info.nasl, redhat_repos.nasl
Risk Information
CVSS Score Source: CVE-2020-29661
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Temporal Vector: E:POC/RL:OF/RC:C
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: E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:rhel_aus:8.2, cpe:/o:redhat:rhel_e4s:8.2, cpe:/o:redhat:rhel_eus:8.2, cpe:/o:redhat:rhel_tus: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