Red Hat Enterprise Linux 8.4 update for kpatch-patch



Published: 2024-03-19
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2024-0646
CVE-2023-3611
CVE-2023-31436
CWE-ID CWE-787
Exploitation vector Local
Public exploit N/A
Vulnerable software
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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_120_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-305_114_1 (Red Hat package)
Operating systems & Components / Operating system package or component

kpatch-patch-4_18_0-305_108_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) Out-of-bounds write

EUVDB-ID: #VU86246

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-2024-0646

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 when processing untrusted input in the Linux kernel’s Transport Layer Security functionality in the way a user calls a function splice with a ktls socket as the destination. 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: 8.4

kpatch-patch-4_18_0-305_120_1 (Red Hat package): before 1-1.el8_4

kpatch-patch-4_18_0-305_114_1 (Red Hat package): before 1-2.el8_4

kpatch-patch-4_18_0-305_108_1 (Red Hat package): before 1-3.el8_4

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

External links

http://access.redhat.com/errata/RHSA-2024:1377


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) Out-of-bounds write

EUVDB-ID: #VU78943

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-2023-3611

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 qfq_change_agg() function in net/sched/sch_qfq.c within the Linux kernel net/sched: sch_qfq component. A local user trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.4

kpatch-patch-4_18_0-305_120_1 (Red Hat package): before 1-1.el8_4

kpatch-patch-4_18_0-305_114_1 (Red Hat package): before 1-2.el8_4

kpatch-patch-4_18_0-305_108_1 (Red Hat package): before 1-3.el8_4

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

External links

http://access.redhat.com/errata/RHSA-2024:1377


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: #VU76098

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-2023-31436

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 qfq_change_class() function in net/sched/sch_qfq.c. 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: 8.4

kpatch-patch-4_18_0-305_120_1 (Red Hat package): before 1-1.el8_4

kpatch-patch-4_18_0-305_114_1 (Red Hat package): before 1-2.el8_4

kpatch-patch-4_18_0-305_108_1 (Red Hat package): before 1-3.el8_4

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

External links

http://access.redhat.com/errata/RHSA-2024:1377


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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