Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions update for kpatch-patch



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-3609
CVE-2023-3776
CVE-2023-4128
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
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_0-305_97_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-305_91_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-305_88_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-305_86_2 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-305_82_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-305_103_1 (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU78941

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-2023-3609

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 the the Linux kernel net/sched: cls_u32 component. A local user can trigger a use-after-free error 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: 8.4

kpatch-patch-4_18_0-305_97_1 (Red Hat package): before 1-2.el8_4

kpatch-patch-4_18_0-305_91_1 (Red Hat package): before 1-3.el8_4

kpatch-patch-4_18_0-305_88_1 (Red Hat package): before 1-4.el8_4

kpatch-patch-4_18_0-305_86_2 (Red Hat package): before 1-4.el8_4

kpatch-patch-4_18_0-305_82_1 (Red Hat package): before 1-5.el8_4

kpatch-patch-4_18_0-305_103_1 (Red Hat package): before 1-1.el8_4

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:5775


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) Use-after-free

EUVDB-ID: #VU79285

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-2023-3776

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 the the Linux kernel's net/sched: cls_fw component. A local user can trigger a use-after-free error 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: 8.4

kpatch-patch-4_18_0-305_97_1 (Red Hat package): before 1-2.el8_4

kpatch-patch-4_18_0-305_91_1 (Red Hat package): before 1-3.el8_4

kpatch-patch-4_18_0-305_88_1 (Red Hat package): before 1-4.el8_4

kpatch-patch-4_18_0-305_86_2 (Red Hat package): before 1-4.el8_4

kpatch-patch-4_18_0-305_82_1 (Red Hat package): before 1-5.el8_4

kpatch-patch-4_18_0-305_103_1 (Red Hat package): before 1-1.el8_4

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:5775


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: #VU79486

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-2023-4128

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/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel. A local user can trigger a use-after-free error 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: 8.4

kpatch-patch-4_18_0-305_97_1 (Red Hat package): before 1-2.el8_4

kpatch-patch-4_18_0-305_91_1 (Red Hat package): before 1-3.el8_4

kpatch-patch-4_18_0-305_88_1 (Red Hat package): before 1-4.el8_4

kpatch-patch-4_18_0-305_86_2 (Red Hat package): before 1-4.el8_4

kpatch-patch-4_18_0-305_82_1 (Red Hat package): before 1-5.el8_4

kpatch-patch-4_18_0-305_103_1 (Red Hat package): before 1-1.el8_4

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:5775


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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