Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2019-19921 CVE-2020-8945 |
CWE-ID | CWE-284 CWE-416 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
Red Hat OpenShift Container Platform Client/Desktop applications / Software for system administration |
Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
Updated: 13.03.2020
Updated affected software and references for vulnerability #1.
Updated: 17.03.2020
Updated affected software and references for vulnerability #2.
EUVDB-ID: #VU25847
Risk: Low
CVSSv3.1: 6 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-19921
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain unauthorized access to sensitive information.
The vulnerability exists due to improper access restrictions, related to libcontainer/rootfs_linux.go in runc. A local user with ability to spawn two containers with custom volume-mount configurations, and run custom images can escalate privileges on the system.
Update to version 4.2.22.
Red Hat OpenShift Container Platform: 4.1.0 - 4.2.21
CPE2.3http://access.redhat.com/errata/RHSA-2020:0688
http://access.redhat.com/errata/RHSA-2020:0695
http://bugzilla.redhat.com/show_bug.cgi?id=1796107
http://www.redhat.com/security/data/cve/CVE-2019-19921.html
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. However, proof of concept for this vulnerability is available.
EUVDB-ID: #VU25501
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-8945
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error, as demonstrated by use for container image pulls by Docker or CRI-O. A remote attacker can crash the target system, or cause potential code execution for Go applications that use this library under certain conditions during GPG signature verification.
MitigationUpdate to version 4.2.22.
Red Hat OpenShift Container Platform: 4.1.0 - 4.2.21
CPE2.3http://access.redhat.com/errata/RHSA-2020:0689
http://access.redhat.com/errata/RHSA-2020:0697
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.