Red Hat Enterprise Linux 8 update for kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2023-2163 CVE-2023-4622 CVE-2023-42753 CVE-2023-2162 CVE-2023-20593 |
| CWE-ID | CWE-787 CWE-416 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system Red Hat Enterprise Linux Server - TUS Operating systems & Components / Operating system Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component kernel (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Out-of-bounds write
EUVDB-ID: #VU79673
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-2163
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in BPF verifier caused by improper marking of
registers for precision tracking in certain situations. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.2
Red Hat Enterprise Linux Server - TUS: 8.2
kernel (Red Hat package): before 4.18.0-193.120.1.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2024:0403
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) Use-after-free
EUVDB-ID: #VU80583
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-2023-4622
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 unix_stream_sendpage() function in af_unix component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.2
Red Hat Enterprise Linux Server - TUS: 8.2
kernel (Red Hat package): before 4.18.0-193.120.1.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2024:0403
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) Out-of-bounds write
EUVDB-ID: #VU81663
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-2023-42753
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the netfilter subsystem in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.2
Red Hat Enterprise Linux Server - TUS: 8.2
kernel (Red Hat package): before 4.18.0-193.120.1.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2024:0403
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) Use-after-free
EUVDB-ID: #VU75994
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-2162
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a use-after-free error within the scsi_sw_tcp_session_create() function in drivers/scsi/iscsi_tcp.c in SCSI sub-component in the Linux Kernel. A local user can trigger a use-after-free error and gain access to sensitive information.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.2
Red Hat Enterprise Linux Server - TUS: 8.2
kernel (Red Hat package): before 4.18.0-193.120.1.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2024:0403
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.
5) Use-after-free
EUVDB-ID: #VU78572
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-2023-20593
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 in AMD Zen2 processors. A local user can trigger a use-after-free error and execute arbitrary code on the system.
Note, the vulnerability was dubbed Zenbleed.
Install updates from vendor's website.
Red Hat Enterprise Linux Server - AUS: 8.2
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.2
Red Hat Enterprise Linux Server - TUS: 8.2
kernel (Red Hat package): before 4.18.0-193.120.1.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2024:0403
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.
