Risk | High |
Patch available | YES |
Number of vulnerabilities | 5 |
CVE-ID | CVE-2021-3121 CVE-2021-3609 CVE-2021-22543 CVE-2021-22555 CVE-2021-27218 |
CWE-ID | CWE-129 CWE-362 CWE-119 CWE-787 CWE-681 |
Exploitation vector | Network |
Public exploit |
Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 is available. Vulnerability #4 is being exploited in the wild. |
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 5 vulnerabilities.
EUVDB-ID: #VU52902
Risk: High
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3121
CWE-ID:
CWE-129 - Improper Validation of Array Index
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to improper validation of index array in plugin/unmarshal/unmarshal.go. A remote attacker can pass specially crafted data to the application and bypass implemented security restrictions, possibly leading to remote code execution.
Install updates from vendor's website.
Red Hat OpenShift Container Platform: 4.7.0 - 4.7.24
External linkshttp://access.redhat.com/errata/RHSA-2021:3262
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.
EUVDB-ID: #VU54292
Risk: Medium
CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-3609
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the CAN BCM networking protocol (net/can/bcm.c) in the Linux kernel ranging from version 2.6.25 to mainline 5.13-rc6. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
MitigationInstall updates from vendor's website.
Red Hat OpenShift Container Platform: 4.7.0 - 4.7.24
External linkshttp://access.redhat.com/errata/RHSA-2021:3262
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: #VU56018
Risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-22543
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in Linux kernel when handling VM_IO|VM_PFNMAP vmas in KVM. A local user can can bypass RO checks and cause the pages to get freed while still accessible by the VMM and guest. As a result, an attacker with the ability to start and control a VM to read/write random pages of memory, can trigger memory corruption and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Red Hat OpenShift Container Platform: 4.7.0 - 4.7.24
External linkshttp://access.redhat.com/errata/RHSA-2021:3262
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: #VU56017
Risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-22555
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: Yes
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when processing untrusted input in net/netfilter/x_tables.c in Linux kernel. A local user can run a specially crafted program to trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Red Hat OpenShift Container Platform: 4.7.0 - 4.7.24
External linkshttp://access.redhat.com/errata/RHSA-2021:3262
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: #VU51455
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-27218
CWE-ID:
CWE-681 - Incorrect Conversion between Numeric Types
Exploit availability: No
DescriptionThe vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to incorrect conversion between numeric types in Gnome Glib. If g_byte_array_new_take() was called with a buffer of 4GB or more on a 64-bit platform, the length would be truncated modulo 2**32, causing unintended length truncation.
MitigationInstall updates from vendor's website.
Red Hat OpenShift Container Platform: 4.7.0 - 4.7.24
External linkshttp://access.redhat.com/errata/RHSA-2021:3262
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.