Red Hat Enterprise Linux Server 8.1 update for kpatch-patch



| Updated: 2024-05-31
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-1829
CVE-2023-3090
CVE-2023-35788
CWE-ID CWE-416
CWE-787
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 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_0-147_85_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-147_83_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-147_81_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-147_80_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-147_78_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: #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: 8.1

kpatch-patch-4_18_0-147_85_1 (Red Hat package): before 1-1.el8_1

kpatch-patch-4_18_0-147_83_1 (Red Hat package): before 1-3.el8_1

kpatch-patch-4_18_0-147_81_1 (Red Hat package): before 1-4.el8_1

kpatch-patch-4_18_0-147_80_1 (Red Hat package): before 1-5.el8_1

kpatch-patch-4_18_0-147_78_1 (Red Hat package): before 1-6.el8_1

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:4516


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) Out-of-bounds write

EUVDB-ID: #VU78010

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-2023-3090

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 ipvlan network driver 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: 8.1

kpatch-patch-4_18_0-147_85_1 (Red Hat package): before 1-1.el8_1

kpatch-patch-4_18_0-147_83_1 (Red Hat package): before 1-3.el8_1

kpatch-patch-4_18_0-147_81_1 (Red Hat package): before 1-4.el8_1

kpatch-patch-4_18_0-147_80_1 (Red Hat package): before 1-5.el8_1

kpatch-patch-4_18_0-147_78_1 (Red Hat package): before 1-6.el8_1

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:4516


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) 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: 8.1

kpatch-patch-4_18_0-147_85_1 (Red Hat package): before 1-1.el8_1

kpatch-patch-4_18_0-147_83_1 (Red Hat package): before 1-3.el8_1

kpatch-patch-4_18_0-147_81_1 (Red Hat package): before 1-4.el8_1

kpatch-patch-4_18_0-147_80_1 (Red Hat package): before 1-5.el8_1

kpatch-patch-4_18_0-147_78_1 (Red Hat package): before 1-6.el8_1

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2023:4516


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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