Red Hat Enterprise Linux 9 update for kernel-rt
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-2585 CVE-2022-30594 |
| CWE-ID | CWE-399 CWE-276 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
kernel-rt (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux for Real Time Operating systems & Components / Operating system Red Hat Enterprise Linux for Real Time for NFV Operating systems & Components / Operating system |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Resource management error
EUVDB-ID: #VU66394
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-2022-2585
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack or escalate privileges on the system.
The vulnerability exists due to improper management of internal resources in POSIX CPU timers when handling death of a process. A local user can crash the kernel or execute arbitrary code.
MitigationInstall updates from vendor's website.
kernel-rt (Red Hat package): 5.14.0-70.22.1.rt21.94.el9_0 - 5.14.0-70.26.1.rt21.98.el9_0
Red Hat Enterprise Linux for Real Time: 9
Red Hat Enterprise Linux for Real Time for NFV: 9
External linkshttp://access.redhat.com/errata/RHSA-2022:7319
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.
2) Incorrect default permissions
EUVDB-ID: #VU63631
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-2022-30594
CWE-ID:
CWE-276 - Incorrect Default Permissions
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to mishandling seccomp permissions. A local user can bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag and escalate privileges on the system.
MitigationInstall updates from vendor's website.
kernel-rt (Red Hat package): 5.14.0-70.22.1.rt21.94.el9_0 - 5.14.0-70.26.1.rt21.98.el9_0
Red Hat Enterprise Linux for Real Time: 9
Red Hat Enterprise Linux for Real Time for NFV: 9
External linkshttp://access.redhat.com/errata/RHSA-2022:7319
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.
