Red Hat Enterprise Linux 8.2 Telecommunications Update Service update for kernel-rt
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-3564 CVE-2023-0266 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local |
| Public exploit | Vulnerability #2 is being exploited in the wild. |
| Vulnerable software Subscribe |
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 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 2 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU69799
Risk: Low
CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-3564
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the l2cap_reassemble_sdu() function in net/bluetooth/l2cap_core.c. An attacker with physical access to device can trigger a use-after-free error and execute arbitrary code on the system.
Install updates from vendor's website.
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service: 8.2
kernel-rt (Red Hat package): before 4.18.0-193.105.1.rt13.156.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2023:1560
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Use-after-free
EUVDB-ID: #VU71482
Risk: High
CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2023-0266
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 snd_ctl_elem_read() function in the Linux kernel sound subsystem. A local user can trigger a use-after-free error and execute arbitrary code on the system.
Note, the vulnerability is being actively exploited in the wild.
Install updates from vendor's website.
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service: 8.2
kernel-rt (Red Hat package): before 4.18.0-193.105.1.rt13.156.el8_2
External linkshttp://access.redhat.com/errata/RHSA-2023:1560
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?
Yes. This vulnerability is being exploited in the wild.
