openEuler 20.03 LTS SP1 update for kernel

Published: 2023-11-17

Risk	Low
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2022-45884 CVE-2023-39198 CVE-2023-4623 CVE-2023-35823
CWE-ID	CWE-416 CWE-362
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system bpftool Operating systems & Components / Operating system package or component kernel-tools-devel Operating systems & Components / Operating system package or component bpftool-debuginfo Operating systems & Components / Operating system package or component python3-perf-debuginfo Operating systems & Components / Operating system package or component perf-debuginfo Operating systems & Components / Operating system package or component kernel-debuginfo Operating systems & Components / Operating system package or component python2-perf Operating systems & Components / Operating system package or component perf Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component kernel-tools Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component kernel-debugsource Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component python2-perf-debuginfo Operating systems & Components / Operating system package or component kernel-tools-debuginfo Operating systems & Components / Operating system package or component kernel Operating systems & Components / Operating system package or component
Vendor	openEuler

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU75333

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-2022-45884

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 in drivers/media/dvb-core/dvbdev.c in Linux kernel related to dvb_register_device() function dynamically allocating fops. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

bpftool: before 4.19.90-2311.3.0.0226

kernel-tools-devel: before 4.19.90-2311.3.0.0226

bpftool-debuginfo: before 4.19.90-2311.3.0.0226

python3-perf-debuginfo: before 4.19.90-2311.3.0.0226

perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-debuginfo: before 4.19.90-2311.3.0.0226

python2-perf: before 4.19.90-2311.3.0.0226

perf: before 4.19.90-2311.3.0.0226

python3-perf: before 4.19.90-2311.3.0.0226

kernel-tools: before 4.19.90-2311.3.0.0226

kernel-source: before 4.19.90-2311.3.0.0226

kernel-debugsource: before 4.19.90-2311.3.0.0226

kernel-devel: before 4.19.90-2311.3.0.0226

python2-perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-tools-debuginfo: before 4.19.90-2311.3.0.0226

kernel: before 4.19.90-2311.3.0.0226

CPE2.3

cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1841

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: #VU83904

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39198

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 QXL driver in the Linux kernel. A local privileged user can trigger a use-after-free error and escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

bpftool: before 4.19.90-2311.3.0.0226

kernel-tools-devel: before 4.19.90-2311.3.0.0226

bpftool-debuginfo: before 4.19.90-2311.3.0.0226

python3-perf-debuginfo: before 4.19.90-2311.3.0.0226

perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-debuginfo: before 4.19.90-2311.3.0.0226

python2-perf: before 4.19.90-2311.3.0.0226

perf: before 4.19.90-2311.3.0.0226

python3-perf: before 4.19.90-2311.3.0.0226

kernel-tools: before 4.19.90-2311.3.0.0226

kernel-source: before 4.19.90-2311.3.0.0226

kernel-debugsource: before 4.19.90-2311.3.0.0226

kernel-devel: before 4.19.90-2311.3.0.0226

python2-perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-tools-debuginfo: before 4.19.90-2311.3.0.0226

kernel: before 4.19.90-2311.3.0.0226

CPE2.3

cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1841

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: #VU81664

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-2023-4623

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: sch_hfsc (HFSC qdisc traffic control) component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

bpftool: before 4.19.90-2311.3.0.0226

kernel-tools-devel: before 4.19.90-2311.3.0.0226

bpftool-debuginfo: before 4.19.90-2311.3.0.0226

python3-perf-debuginfo: before 4.19.90-2311.3.0.0226

perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-debuginfo: before 4.19.90-2311.3.0.0226

python2-perf: before 4.19.90-2311.3.0.0226

perf: before 4.19.90-2311.3.0.0226

python3-perf: before 4.19.90-2311.3.0.0226

kernel-tools: before 4.19.90-2311.3.0.0226

kernel-source: before 4.19.90-2311.3.0.0226

kernel-debugsource: before 4.19.90-2311.3.0.0226

kernel-devel: before 4.19.90-2311.3.0.0226

python2-perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-tools-debuginfo: before 4.19.90-2311.3.0.0226

kernel: before 4.19.90-2311.3.0.0226

CPE2.3

cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1841

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) Race condition

EUVDB-ID: #VU77957

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-2023-35823

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition within the saa7134_finidev() function in drivers/media/pci/saa7134/saa7134-core.c. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

bpftool: before 4.19.90-2311.3.0.0226

kernel-tools-devel: before 4.19.90-2311.3.0.0226

bpftool-debuginfo: before 4.19.90-2311.3.0.0226

python3-perf-debuginfo: before 4.19.90-2311.3.0.0226

perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-debuginfo: before 4.19.90-2311.3.0.0226

python2-perf: before 4.19.90-2311.3.0.0226

perf: before 4.19.90-2311.3.0.0226

python3-perf: before 4.19.90-2311.3.0.0226

kernel-tools: before 4.19.90-2311.3.0.0226

kernel-source: before 4.19.90-2311.3.0.0226

kernel-debugsource: before 4.19.90-2311.3.0.0226

kernel-devel: before 4.19.90-2311.3.0.0226

python2-perf-debuginfo: before 4.19.90-2311.3.0.0226

kernel-tools-debuginfo: before 4.19.90-2311.3.0.0226

kernel: before 4.19.90-2311.3.0.0226

CPE2.3

cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1841

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.