RHEL 7 : kernel (RHSA-2020:5430)
medium Nessus Plugin ID 144280
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 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5430 advisory.- kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c (CVE-2017-18551)
- kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)
- kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)
- kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)
- kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)
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/119.html
https://cwe.mitre.org/data/definitions/401.html
https://cwe.mitre.org/data/definitions/416.html
https://cwe.mitre.org/data/definitions/787.html
https://access.redhat.com/security/cve/CVE-2017-18551
https://access.redhat.com/security/cve/CVE-2019-9454
https://access.redhat.com/security/cve/CVE-2019-19447
https://access.redhat.com/security/cve/CVE-2019-20636
https://access.redhat.com/security/cve/CVE-2020-12770
https://access.redhat.com/errata/RHSA-2020:5430
https://bugzilla.redhat.com/1757368
https://bugzilla.redhat.com/1781679
https://bugzilla.redhat.com/1818818
Plugin Details
Severity: Medium
ID: 144280
File Name: redhat-RHSA-2020-5430.nasl
Version: 1.6
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 12/15/2020
Updated: 10/12/2021
Dependencies: ssh_get_info.nasl, redhat_repos.nasl, linux_alt_patch_detect.nasl
Risk Information
CVSS Score Source: CVE-2019-20636
VPR
Risk Factor: High
Score: 8.4
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 v3
Risk Factor: Medium
Base Score: 6.7
Temporal Score: 5.8
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:rhel_aus:7.4, cpe:/o:redhat:rhel_e4s:7.4, cpe:/o:redhat:rhel_tus:7.4, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, 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:perf, p-cpe:/a:redhat:enterprise_linux:python-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: 12/15/2020
Vulnerability Publication Date: 5/30/2019
Reference Information
CVE: CVE-2017-18551, CVE-2019-9454, CVE-2019-19447, CVE-2019-20636, CVE-2020-12770