openEuler 20.03 LTS SP3 update for kernel

Published: 2022-09-02 | Updated: 2024-06-26

Risk	Low
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2022-1729 CVE-2022-2586 CVE-2022-2503 CVE-2022-1462
CWE-ID	CWE-362 CWE-416 CWE-264 CWE-125
Exploitation vector	Local
Public exploit	Vulnerability #2 is being exploited in the wild.
Vulnerable software	openEuler Operating systems & Components / Operating system bpftool-debuginfo Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component kernel-tools-debuginfo Operating systems & Components / Operating system package or component kernel-debuginfo Operating systems & Components / Operating system package or component kernel-debugsource Operating systems & Components / Operating system package or component python2-perf Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component 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 kernel-tools-devel 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-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) Race condition

EUVDB-ID: #VU64156

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-1729

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 sys_perf_event_open() in Linux kernel. 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 SP3

bpftool-debuginfo: before 4.19.90-2208.6.0.0165

kernel-source: before 4.19.90-2208.6.0.0165

python3-perf: before 4.19.90-2208.6.0.0165

kernel-tools-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debugsource: before 4.19.90-2208.6.0.0165

python2-perf: before 4.19.90-2208.6.0.0165

bpftool: before 4.19.90-2208.6.0.0165

perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel-devel: before 4.19.90-2208.6.0.0165

kernel-tools: before 4.19.90-2208.6.0.0165

kernel-tools-devel: before 4.19.90-2208.6.0.0165

python3-perf-debuginfo: before 4.19.90-2208.6.0.0165

perf: before 4.19.90-2208.6.0.0165

python2-perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel: before 4.19.90-2208.6.0.0165

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1881

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: #VU66396

Risk: Low

CVSSv4.0: 8.5 [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:A/U:Clear]

CVE-ID: CVE-2022-2586

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 the netfilter subsystem implementation in Linux kernel when preventing one nft object from referencing an nft set in another nft table. A local user can trigger a use-after-free error and execute arbitrary code on the system with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2208.6.0.0165

kernel-source: before 4.19.90-2208.6.0.0165

python3-perf: before 4.19.90-2208.6.0.0165

kernel-tools-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debugsource: before 4.19.90-2208.6.0.0165

python2-perf: before 4.19.90-2208.6.0.0165

bpftool: before 4.19.90-2208.6.0.0165

perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel-devel: before 4.19.90-2208.6.0.0165

kernel-tools: before 4.19.90-2208.6.0.0165

kernel-tools-devel: before 4.19.90-2208.6.0.0165

python3-perf-debuginfo: before 4.19.90-2208.6.0.0165

perf: before 4.19.90-2208.6.0.0165

python2-perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel: before 4.19.90-2208.6.0.0165

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1881

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?

Yes. This vulnerability is being exploited in the wild.

3) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU66810

Risk: Low

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

CVE-ID: CVE-2022-2503

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to the way dm-verity is used to restrict module/firmware loads to trusted root filesystem in LoadPin builds. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2208.6.0.0165

kernel-source: before 4.19.90-2208.6.0.0165

python3-perf: before 4.19.90-2208.6.0.0165

kernel-tools-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debugsource: before 4.19.90-2208.6.0.0165

python2-perf: before 4.19.90-2208.6.0.0165

bpftool: before 4.19.90-2208.6.0.0165

perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel-devel: before 4.19.90-2208.6.0.0165

kernel-tools: before 4.19.90-2208.6.0.0165

kernel-tools-devel: before 4.19.90-2208.6.0.0165

python3-perf-debuginfo: before 4.19.90-2208.6.0.0165

perf: before 4.19.90-2208.6.0.0165

python2-perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel: before 4.19.90-2208.6.0.0165

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1881

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) Out-of-bounds read

EUVDB-ID: #VU66591

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-1462

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the the Linux kernel’s TeleTYpe subsystem caused by a race condition when using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory file. A local user can trigger an out-of-bounds read error and crash the system or read random kernel memory.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2208.6.0.0165

kernel-source: before 4.19.90-2208.6.0.0165

python3-perf: before 4.19.90-2208.6.0.0165

kernel-tools-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debuginfo: before 4.19.90-2208.6.0.0165

kernel-debugsource: before 4.19.90-2208.6.0.0165

python2-perf: before 4.19.90-2208.6.0.0165

bpftool: before 4.19.90-2208.6.0.0165

perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel-devel: before 4.19.90-2208.6.0.0165

kernel-tools: before 4.19.90-2208.6.0.0165

kernel-tools-devel: before 4.19.90-2208.6.0.0165

python3-perf-debuginfo: before 4.19.90-2208.6.0.0165

perf: before 4.19.90-2208.6.0.0165

python2-perf-debuginfo: before 4.19.90-2208.6.0.0165

kernel: before 4.19.90-2208.6.0.0165

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1881

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.