RHEL 7 : kernel (RHSA-2021:1376)
medium Nessus Plugin ID 149028
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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-2021:1376 advisory.- kernel: use-after-free in fs/block_dev.c (CVE-2020-15436)
- kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)
- kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363)
- kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)
- kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)
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/20.html
https://cwe.mitre.org/data/definitions/122.html
https://cwe.mitre.org/data/definitions/125.html
https://cwe.mitre.org/data/definitions/200.html
https://cwe.mitre.org/data/definitions/250.html
https://cwe.mitre.org/data/definitions/416.html
https://access.redhat.com/security/cve/CVE-2020-15436
https://access.redhat.com/security/cve/CVE-2020-28374
https://access.redhat.com/security/cve/CVE-2021-27363
https://access.redhat.com/security/cve/CVE-2021-27364
https://access.redhat.com/security/cve/CVE-2021-27365
https://access.redhat.com/errata/RHSA-2021:1376
https://bugzilla.redhat.com/1899804
https://bugzilla.redhat.com/1901168
https://bugzilla.redhat.com/1930078
Plugin Details
Severity: Medium
ID: 149028
File Name: redhat-RHSA-2021-1376.nasl
Version: 1.4
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/27/2021
Updated: 10/7/2021
Dependencies: ssh_get_info.nasl, redhat_repos.nasl, linux_alt_patch_detect.nasl
Risk Information
CVSS Score Source: CVE-2020-15436
VPR
Risk Factor: High
Score: 7.7
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:7.6, cpe:/o:redhat:rhel_e4s:7.6, cpe:/o:redhat:rhel_eus:7.6, cpe:/o:redhat:rhel_tus:7.6, p-cpe:/a:redhat:enterprise_linux:bpftool, 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-headers, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-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: 4/27/2021
Vulnerability Publication Date: 7/25/2020
Reference Information
CVE: CVE-2020-15436, CVE-2020-28374, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365