Red Hat Enterprise Linux 8.6 Extended Update Support update for kpatch-patch



| Updated: 2024-05-31
Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2022-42896
CVE-2023-1829
CVE-2023-3390
CVE-2023-35788
CWE-ID CWE-416
CWE-787
Exploitation vector Local
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-372_64_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-372_57_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-372_52_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-372_51_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-372_46_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-372_41_1 (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux Server - TUS
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server - AUS
Operating systems & Components / Operating system

Red Hat Enterprise Linux for x86_64 - Extended Update Support
Operating systems & Components / Operating system

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU69795

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-42896

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The 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.

Vulnerable software versions

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.6

Red Hat Enterprise Linux Server - TUS: 8.6

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.6

Red Hat Enterprise Linux Server - AUS: 8.6

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.6

kpatch-patch-4_18_0-372_64_1 (Red Hat package): before 1-1.el8_6

kpatch-patch-4_18_0-372_57_1 (Red Hat package): before 1-2.el8_6

kpatch-patch-4_18_0-372_52_1 (Red Hat package): before 1-3.el8_6

kpatch-patch-4_18_0-372_51_1 (Red Hat package): before 1-4.el8_6

kpatch-patch-4_18_0-372_46_1 (Red Hat package): before 1-5.el8_6

kpatch-patch-4_18_0-372_41_1 (Red Hat package): before 1-7.el8_6

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:4888


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: #VU75448

Risk: Low

CVSSv4.0: 7.1 [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:P/U:Clear]

CVE-ID: CVE-2023-1829

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

The 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.6

Red Hat Enterprise Linux Server - TUS: 8.6

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.6

Red Hat Enterprise Linux Server - AUS: 8.6

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.6

kpatch-patch-4_18_0-372_64_1 (Red Hat package): before 1-1.el8_6

kpatch-patch-4_18_0-372_57_1 (Red Hat package): before 1-2.el8_6

kpatch-patch-4_18_0-372_52_1 (Red Hat package): before 1-3.el8_6

kpatch-patch-4_18_0-372_51_1 (Red Hat package): before 1-4.el8_6

kpatch-patch-4_18_0-372_46_1 (Red Hat package): before 1-5.el8_6

kpatch-patch-4_18_0-372_41_1 (Red Hat package): before 1-7.el8_6

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:4888


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.

3) Use-after-free

EUVDB-ID: #VU78007

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-2023-3390

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within net/netfilter/nf_tables_api.c in the Linux kernel netfilter subsystem. A local user can trigger a use-after-fee error and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.6

Red Hat Enterprise Linux Server - TUS: 8.6

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.6

Red Hat Enterprise Linux Server - AUS: 8.6

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.6

kpatch-patch-4_18_0-372_64_1 (Red Hat package): before 1-1.el8_6

kpatch-patch-4_18_0-372_57_1 (Red Hat package): before 1-2.el8_6

kpatch-patch-4_18_0-372_52_1 (Red Hat package): before 1-3.el8_6

kpatch-patch-4_18_0-372_51_1 (Red Hat package): before 1-4.el8_6

kpatch-patch-4_18_0-372_46_1 (Red Hat package): before 1-5.el8_6

kpatch-patch-4_18_0-372_41_1 (Red Hat package): before 1-7.el8_6

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:4888


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 write

EUVDB-ID: #VU77502

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-2023-35788

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 within the fl_set_geneve_opt() function in net/sched/cls_flower.c in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.6

Red Hat Enterprise Linux Server - TUS: 8.6

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.6

Red Hat Enterprise Linux Server - AUS: 8.6

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.6

kpatch-patch-4_18_0-372_64_1 (Red Hat package): before 1-1.el8_6

kpatch-patch-4_18_0-372_57_1 (Red Hat package): before 1-2.el8_6

kpatch-patch-4_18_0-372_52_1 (Red Hat package): before 1-3.el8_6

kpatch-patch-4_18_0-372_51_1 (Red Hat package): before 1-4.el8_6

kpatch-patch-4_18_0-372_46_1 (Red Hat package): before 1-5.el8_6

kpatch-patch-4_18_0-372_41_1 (Red Hat package): before 1-7.el8_6

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:4888


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.



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