openEuler update for kernel

Published: 2022-07-30

Risk	Low
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2022-2380 CVE-2022-20227 CVE-2022-21505
CWE-ID	CWE-125 CWE-254
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system kernel-debuginfo Operating systems & Components / Operating system package or component kernel-tools-debuginfo Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component perf Operating systems & Components / Operating system package or component bpftool-debuginfo Operating systems & Components / Operating system package or component python2-perf-debuginfo Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component python3-perf-debuginfo Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component kernel-tools-devel Operating systems & Components / Operating system package or component perf-debuginfo Operating systems & Components / Operating system package or component python2-perf Operating systems & Components / Operating system package or component kernel-tools Operating systems & Components / Operating system package or component kernel-debugsource 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 3 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU65288

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2380

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in the Linux kernel framebuffer within the drivers/video/fbdev/sm712fb.c:smtcfb_read() function. A local user can trigger ab out-of-bounds read error and crash the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

kernel-debuginfo: before 4.19.90-2207.4.0.0160

kernel-tools-debuginfo: before 4.19.90-2207.4.0.0160

kernel-devel: before 4.19.90-2207.4.0.0160

perf: before 4.19.90-2207.4.0.0160

bpftool-debuginfo: before 4.19.90-2207.4.0.0160

python2-perf-debuginfo: before 4.19.90-2207.4.0.0160

python3-perf: before 4.19.90-2207.4.0.0160

python3-perf-debuginfo: before 4.19.90-2207.4.0.0160

kernel-source: before 4.19.90-2207.4.0.0160

bpftool: before 4.19.90-2207.4.0.0160

kernel-tools-devel: before 4.19.90-2207.4.0.0160

perf-debuginfo: before 4.19.90-2207.4.0.0160

python2-perf: before 4.19.90-2207.4.0.0160

kernel-tools: before 4.19.90-2207.4.0.0160

kernel-debugsource: before 4.19.90-2207.4.0.0160

kernel: before 4.19.90-2207.4.0.0160

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1794

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 read

EUVDB-ID: #VU65069

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20227

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in USB implementation in OS kernel. A malicious application can read potentially sensitive information from kernel memory.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

kernel-debuginfo: before 4.19.90-2207.4.0.0160

kernel-tools-debuginfo: before 4.19.90-2207.4.0.0160

kernel-devel: before 4.19.90-2207.4.0.0160

perf: before 4.19.90-2207.4.0.0160

bpftool-debuginfo: before 4.19.90-2207.4.0.0160

python2-perf-debuginfo: before 4.19.90-2207.4.0.0160

python3-perf: before 4.19.90-2207.4.0.0160

python3-perf-debuginfo: before 4.19.90-2207.4.0.0160

kernel-source: before 4.19.90-2207.4.0.0160

bpftool: before 4.19.90-2207.4.0.0160

kernel-tools-devel: before 4.19.90-2207.4.0.0160

perf-debuginfo: before 4.19.90-2207.4.0.0160

python2-perf: before 4.19.90-2207.4.0.0160

kernel-tools: before 4.19.90-2207.4.0.0160

kernel-debugsource: before 4.19.90-2207.4.0.0160

kernel: before 4.19.90-2207.4.0.0160

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1794

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) Security features bypass

EUVDB-ID: #VU66592

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21505

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows an attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect implementation of the IMA lockdown feature. If IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine with Secure Boot. An attacker with physical access to device can bypass Secure Boot mechanism.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

kernel-debuginfo: before 4.19.90-2207.4.0.0160

kernel-tools-debuginfo: before 4.19.90-2207.4.0.0160

kernel-devel: before 4.19.90-2207.4.0.0160

perf: before 4.19.90-2207.4.0.0160

bpftool-debuginfo: before 4.19.90-2207.4.0.0160

python2-perf-debuginfo: before 4.19.90-2207.4.0.0160

python3-perf: before 4.19.90-2207.4.0.0160

python3-perf-debuginfo: before 4.19.90-2207.4.0.0160

kernel-source: before 4.19.90-2207.4.0.0160

bpftool: before 4.19.90-2207.4.0.0160

kernel-tools-devel: before 4.19.90-2207.4.0.0160

perf-debuginfo: before 4.19.90-2207.4.0.0160

python2-perf: before 4.19.90-2207.4.0.0160

kernel-tools: before 4.19.90-2207.4.0.0160

kernel-debugsource: before 4.19.90-2207.4.0.0160

kernel: before 4.19.90-2207.4.0.0160

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1794

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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