openEuler 20.03 LTS SP1 update for kernel



Risk Medium
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2022-41218
CVE-2022-42329
CVE-2022-3115
CVE-2022-42328
CWE-ID CWE-416
CWE-399
CWE-476
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
openEuler
Operating systems & Components / Operating system

kernel-source
Operating systems & Components / Operating system package or component

python3-perf
Operating systems & Components / Operating system package or component

kernel-tools-devel
Operating systems & Components / Operating system package or component

kernel-debugsource
Operating systems & Components / Operating system package or component

kernel-tools-debuginfo
Operating systems & Components / Operating system package or component

python3-perf-debuginfo
Operating systems & Components / Operating system package or component

perf
Operating systems & Components / Operating system package or component

python2-perf
Operating systems & Components / Operating system package or component

kernel-debuginfo
Operating systems & Components / Operating system package or component

perf-debuginfo
Operating systems & Components / Operating system package or component

python2-perf-debuginfo
Operating systems & Components / Operating system package or component

kernel-devel
Operating systems & Components / Operating system package or component

kernel-tools
Operating systems & Components / Operating system package or component

bpftool
Operating systems & Components / Operating system package or component

bpftool-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: #VU67657

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-2022-41218

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 dvb_demux_open() and dvb_dmxdev_release() function in drivers/media/dvb-core/dmxdev.c in 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 repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

kernel-source: before 4.19.90-2212.4.0.0183

python3-perf: before 4.19.90-2212.4.0.0183

kernel-tools-devel: before 4.19.90-2212.4.0.0183

kernel-debugsource: before 4.19.90-2212.4.0.0183

kernel-tools-debuginfo: before 4.19.90-2212.4.0.0183

python3-perf-debuginfo: before 4.19.90-2212.4.0.0183

perf: before 4.19.90-2212.4.0.0183

python2-perf: before 4.19.90-2212.4.0.0183

kernel-debuginfo: before 4.19.90-2212.4.0.0183

perf-debuginfo: before 4.19.90-2212.4.0.0183

python2-perf-debuginfo: before 4.19.90-2212.4.0.0183

kernel-devel: before 4.19.90-2212.4.0.0183

kernel-tools: before 4.19.90-2212.4.0.0183

bpftool: before 4.19.90-2212.4.0.0183

bpftool-debuginfo: before 4.19.90-2212.4.0.0183

kernel: before 4.19.90-2212.4.0.0183

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1013


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) Resource management error

EUVDB-ID: #VU70470

Risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/U:Green]

CVE-ID: CVE-2022-42329

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows an attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources. An attacker with access to the guest OS can trigger deadlock in Linux netback driver and perform a denial of service (DoS) attack of the host via the paravirtualized network interface.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

kernel-source: before 4.19.90-2212.4.0.0183

python3-perf: before 4.19.90-2212.4.0.0183

kernel-tools-devel: before 4.19.90-2212.4.0.0183

kernel-debugsource: before 4.19.90-2212.4.0.0183

kernel-tools-debuginfo: before 4.19.90-2212.4.0.0183

python3-perf-debuginfo: before 4.19.90-2212.4.0.0183

perf: before 4.19.90-2212.4.0.0183

python2-perf: before 4.19.90-2212.4.0.0183

kernel-debuginfo: before 4.19.90-2212.4.0.0183

perf-debuginfo: before 4.19.90-2212.4.0.0183

python2-perf-debuginfo: before 4.19.90-2212.4.0.0183

kernel-devel: before 4.19.90-2212.4.0.0183

kernel-tools: before 4.19.90-2212.4.0.0183

bpftool: before 4.19.90-2212.4.0.0183

bpftool-debuginfo: before 4.19.90-2212.4.0.0183

kernel: before 4.19.90-2212.4.0.0183

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1013


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) NULL pointer dereference

EUVDB-ID: #VU71581

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3115

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the malidp_crtc_reset() function in drivers/gpu/drm/arm/malidp_crtc.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

kernel-source: before 4.19.90-2212.4.0.0183

python3-perf: before 4.19.90-2212.4.0.0183

kernel-tools-devel: before 4.19.90-2212.4.0.0183

kernel-debugsource: before 4.19.90-2212.4.0.0183

kernel-tools-debuginfo: before 4.19.90-2212.4.0.0183

python3-perf-debuginfo: before 4.19.90-2212.4.0.0183

perf: before 4.19.90-2212.4.0.0183

python2-perf: before 4.19.90-2212.4.0.0183

kernel-debuginfo: before 4.19.90-2212.4.0.0183

perf-debuginfo: before 4.19.90-2212.4.0.0183

python2-perf-debuginfo: before 4.19.90-2212.4.0.0183

kernel-devel: before 4.19.90-2212.4.0.0183

kernel-tools: before 4.19.90-2212.4.0.0183

bpftool: before 4.19.90-2212.4.0.0183

bpftool-debuginfo: before 4.19.90-2212.4.0.0183

kernel: before 4.19.90-2212.4.0.0183

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1013


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) Resource management error

EUVDB-ID: #VU70469

Risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/U:Green]

CVE-ID: CVE-2022-42328

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows an attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources. An attacker with access to the guest OS can trigger deadlock in Linux netback driver and perform a denial of service (DoS) attack of the host via the paravirtualized network interface.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

kernel-source: before 4.19.90-2212.4.0.0183

python3-perf: before 4.19.90-2212.4.0.0183

kernel-tools-devel: before 4.19.90-2212.4.0.0183

kernel-debugsource: before 4.19.90-2212.4.0.0183

kernel-tools-debuginfo: before 4.19.90-2212.4.0.0183

python3-perf-debuginfo: before 4.19.90-2212.4.0.0183

perf: before 4.19.90-2212.4.0.0183

python2-perf: before 4.19.90-2212.4.0.0183

kernel-debuginfo: before 4.19.90-2212.4.0.0183

perf-debuginfo: before 4.19.90-2212.4.0.0183

python2-perf-debuginfo: before 4.19.90-2212.4.0.0183

kernel-devel: before 4.19.90-2212.4.0.0183

kernel-tools: before 4.19.90-2212.4.0.0183

bpftool: before 4.19.90-2212.4.0.0183

bpftool-debuginfo: before 4.19.90-2212.4.0.0183

kernel: before 4.19.90-2212.4.0.0183

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1013


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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