Red Hat Enterprise Linux 8 update for kernel-rt
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 6 |
| CVE-ID | CVE-2022-42896 CVE-2023-1281 CVE-2023-1829 CVE-2023-2124 CVE-2023-2194 CVE-2023-2235 |
| CWE-ID | CWE-416 CWE-125 CWE-787 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
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 6 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU69795
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-2022-42896
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_connect() and l2cap_le_connect_req() function in net/bluetooth/l2cap_core.c. An attacker with physical proximity to the affected device can trigger a use-after-free error and execute arbitrary code on the system.
Mitigation
Install 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 4.18.0-477.21.1.rt7.284.el8_8
External linkshttp://access.redhat.com/errata/RHSA-2023:4541
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: #VU74122
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-2023-1281
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 Linux kernel traffic control index filter (tcindex) when the tcf_exts_exec() function is called with the destroyed tcf_ext. A local user attacker can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Install 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 4.18.0-477.21.1.rt7.284.el8_8
External linkshttp://access.redhat.com/errata/RHSA-2023:4541
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) Use-after-free
EUVDB-ID: #VU75448
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-2023-1829
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 tcindex_delete() function. A local user can trigger a use-after-free error and execute arbitrary code with root privileges.
Install 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 4.18.0-477.21.1.rt7.284.el8_8
External linkshttp://access.redhat.com/errata/RHSA-2023:4541
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) Out-of-bounds read
EUVDB-ID: #VU75323
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-2124
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 a boundary condition within the XFS subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and crash the kernel.
Install 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 4.18.0-477.21.1.rt7.284.el8_8
External linkshttp://access.redhat.com/errata/RHSA-2023:4541
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) Out-of-bounds write
EUVDB-ID: #VU77249
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-2023-2194
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 Linux kernel's SLIMpro I2C device driver. 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 for Real Time for NFV: 8
Red Hat Enterprise Linux for Real Time: 8
kernel-rt (Red Hat package): before 4.18.0-477.21.1.rt7.284.el8_8
External linkshttp://access.redhat.com/errata/RHSA-2023:4541
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.
6) Use-after-free
EUVDB-ID: #VU75997
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-2023-2235
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 the Linux Kernel Performance Events system. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Install 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 4.18.0-477.21.1.rt7.284.el8_8
External linkshttp://access.redhat.com/errata/RHSA-2023:4541
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.
