Red Hat Enterprise Linux for Real Time 8.2 update for kernel-rt
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2020-0466 CVE-2020-12114 CVE-2020-12362 CVE-2020-28374 |
| CWE-ID | CWE-264 CWE-362 CWE-190 CWE-22 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Red Hat Enterprise Linux for Real Time for NFV Operating systems & Components / Operating system Red Hat Enterprise Linux for Real Time Operating systems & Components / Operating system kernel-rt (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU52033
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-0466
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to unspecified error, related to I/O subsystem in kernel. A local user can elevated privileges on the system.
Install updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8.2
Red Hat Enterprise Linux for Real Time: 8.2
kernel-rt (Red Hat package): 4.18.0-193.1.2.rt13.53.el8_2 - 4.18.0-193.51.1.rt13.101.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2021:2190
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Race condition
EUVDB-ID: #VU27480
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-12114
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to a race condition between threads updating mountpoint reference counter. A local user can exploit the race and crash the system.
Install updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8.2
Red Hat Enterprise Linux for Real Time: 8.2
kernel-rt (Red Hat package): 4.18.0-193.1.2.rt13.53.el8_2 - 4.18.0-193.51.1.rt13.101.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2021:2190
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Integer overflow
EUVDB-ID: #VU54234
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-12362
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow. A local user can run a specially crafted program to trigger integer overflow and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8.2
Red Hat Enterprise Linux for Real Time: 8.2
kernel-rt (Red Hat package): 4.18.0-193.1.2.rt13.53.el8_2 - 4.18.0-193.51.1.rt13.101.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2021:2190
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Path traversal
EUVDB-ID: #VU49914
Risk: Medium
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-28374
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in drivers/target/target_core_xcopy.c in the Linux kernel. A remote user with access to iSCSI LUN can send a specially crafted XCOPY request and read or write arbitrary files on the system.
Install updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8.2
Red Hat Enterprise Linux for Real Time: 8.2
kernel-rt (Red Hat package): 4.18.0-193.1.2.rt13.53.el8_2 - 4.18.0-193.51.1.rt13.101.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2021:2190
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
