Risk | Low |
Patch available | YES |
Number of vulnerabilities | 4 |
CVE-ID | CVE-2020-14351 CVE-2020-24394 CVE-2020-25212 CVE-2020-29661 |
CWE-ID | CWE-416 CWE-732 CWE-367 CWE-667 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
kernel (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component Red Hat Enterprise Linux for x86_64 - Extended Update Support Operating systems & Components / Operating system Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL Operating systems & Components / Operating system Red Hat Enterprise Linux Server - TUS Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux EUS Compute Node Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, big endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system |
Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
EUVDB-ID: #VU51544
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-2020-14351
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the perf subsystem. A local user with permission to monitor perf events cam corrupt memory and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.65.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server - TUS: 7.6
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
External linkshttp://access.redhat.com/errata/RHSA-2021:0878
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.
EUVDB-ID: #VU51240
Risk: Low
CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-24394
CWE-ID:
CWE-732 - Incorrect Permission Assignment for Critical Resource
Exploit availability: No
DescriptionThe vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to incorrect assignment of permissions on new filesystem objects when the filesystem lacks ACL support in fs/nfsd/vfs.c (in the NFS server). A local user can read and write arbitrary files on the system.
Install updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.65.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server - TUS: 7.6
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
External linkshttp://access.redhat.com/errata/RHSA-2021:0878
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.
EUVDB-ID: #VU51433
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-2020-25212
CWE-ID:
CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a TOCTOU mismatch in the NFS client code in the Linux kernel. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code on the system with elevated privileges. MitigationInstall updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.65.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server - TUS: 7.6
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
External linkshttp://access.redhat.com/errata/RHSA-2021:0878
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.
EUVDB-ID: #VU51543
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-2020-29661
CWE-ID:
CWE-667 - Improper Locking
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a escalate privileges on the system.
The vulnerability exists due to locking error in the tty subsystem of the Linux kernel in drivers/tty/tty_jobctrl.c. An local user can exploit this vulnerability to trigger a use-after-free error against TIOCSPGRP and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.65.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 7.6
Red Hat Enterprise Linux Server - TUS: 7.6
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
External linkshttp://access.redhat.com/errata/RHSA-2021:0878
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.