Red Hat Enterprise Linux 8 update for kernel-rt
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2022-48919 CVE-2024-50301 CVE-2024-53064 CVE-2025-21764 |
| CWE-ID | CWE-416 CWE-125 CWE-476 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
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) Use-after-free
EUVDB-ID: #VU96413
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-48919
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 cifs_do_mount() function in fs/cifs/cifsfs.c. A local user can escalate privileges on the system.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8
Red Hat Enterprise Linux for Real Time: 8
kernel-rt (Red Hat package): before 4.18.0-553.58.1.rt7.399.el8_10
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel-rt_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2025:9581
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) Out-of-bounds read
EUVDB-ID: #VU100622
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2024-50301
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the security/keys/keyring.c. A local user can perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8
Red Hat Enterprise Linux for Real Time: 8
kernel-rt (Red Hat package): before 4.18.0-553.58.1.rt7.399.el8_10
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel-rt_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2025:9581
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) NULL pointer dereference
EUVDB-ID: #VU100714
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2024-53064
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the idpf_init_hard_reset() function in drivers/net/ethernet/intel/idpf/idpf_lib.c. A local user can perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8
Red Hat Enterprise Linux for Real Time: 8
kernel-rt (Red Hat package): before 4.18.0-553.58.1.rt7.399.el8_10
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel-rt_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2025:9581
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: #VU104950
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2025-21764
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 ndisc_alloc_skb() function in net/ipv6/ndisc.c. A local user can escalate privileges on the system.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux for Real Time for NFV: 8
Red Hat Enterprise Linux for Real Time: 8
kernel-rt (Red Hat package): before 4.18.0-553.58.1.rt7.399.el8_10
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_real_time:8:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel-rt_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2025:9581
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.
