RHEL 7 : kernel (RHSA-2020:5430)
medium Nessus Plugin ID 144280
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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: 1.5
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 12/15/2020
Updated: 7/21/2021
Dependencies: ssh_get_info.nasl, redhat_repos.nasl, linux_alt_patch_detect.nasl
Risk Information
CVSS Score Source: CVE-2019-20636
VPR
Risk Factor: Medium
Score: 6.7
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-bootwrapper, 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