openEuler 22.03 LTS update for kernel

Published: 2023-02-03

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2023-20928 CVE-2023-0210 CVE-2023-23559 CVE-2022-4696
CWE-ID	CWE-416 CWE-122 CWE-190
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system perf-debuginfo Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component kernel-headers 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 kernel-debuginfo Operating systems & Components / Operating system package or component bpftool-debuginfo Operating systems & Components / Operating system package or component perf 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 python3-perf Operating systems & Components / Operating system package or component kernel-tools 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: #VU71065

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-2023-20928

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in Binder driver. A local application can trigger a race condition and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

perf-debuginfo: before 5.10.0-60.79.0.103

kernel-devel: before 5.10.0-60.79.0.103

bpftool: before 5.10.0-60.79.0.103

kernel-source: before 5.10.0-60.79.0.103

kernel-headers: before 5.10.0-60.79.0.103

kernel-debugsource: before 5.10.0-60.79.0.103

kernel-tools-debuginfo: before 5.10.0-60.79.0.103

kernel-debuginfo: before 5.10.0-60.79.0.103

bpftool-debuginfo: before 5.10.0-60.79.0.103

perf: before 5.10.0-60.79.0.103

kernel-tools-devel: before 5.10.0-60.79.0.103

python3-perf-debuginfo: before 5.10.0-60.79.0.103

python3-perf: before 5.10.0-60.79.0.103

kernel-tools: before 5.10.0-60.79.0.103

kernel: before 5.10.0-60.79.0.103

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1056

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) Heap-based buffer overflow

EUVDB-ID: #VU71095

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0210

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the ksmbd_decode_ntlmssp_auth_blob() function in ksmbd when handling NTLMv2 authentication. A remote attacker can send specially crafted data to ksmbd, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

perf-debuginfo: before 5.10.0-60.79.0.103

kernel-devel: before 5.10.0-60.79.0.103

bpftool: before 5.10.0-60.79.0.103

kernel-source: before 5.10.0-60.79.0.103

kernel-headers: before 5.10.0-60.79.0.103

kernel-debugsource: before 5.10.0-60.79.0.103

kernel-tools-debuginfo: before 5.10.0-60.79.0.103

kernel-debuginfo: before 5.10.0-60.79.0.103

bpftool-debuginfo: before 5.10.0-60.79.0.103

perf: before 5.10.0-60.79.0.103

kernel-tools-devel: before 5.10.0-60.79.0.103

python3-perf-debuginfo: before 5.10.0-60.79.0.103

python3-perf: before 5.10.0-60.79.0.103

kernel-tools: before 5.10.0-60.79.0.103

kernel: before 5.10.0-60.79.0.103

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1056

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Integer overflow

EUVDB-ID: #VU72468

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-2023-23559

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow within the rndis_query_oid() function in drivers/net/wireless/rndis_wlan.c. A local user can trigger an integer overflow and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

perf-debuginfo: before 5.10.0-60.79.0.103

kernel-devel: before 5.10.0-60.79.0.103

bpftool: before 5.10.0-60.79.0.103

kernel-source: before 5.10.0-60.79.0.103

kernel-headers: before 5.10.0-60.79.0.103

kernel-debugsource: before 5.10.0-60.79.0.103

kernel-tools-debuginfo: before 5.10.0-60.79.0.103

kernel-debuginfo: before 5.10.0-60.79.0.103

bpftool-debuginfo: before 5.10.0-60.79.0.103

perf: before 5.10.0-60.79.0.103

kernel-tools-devel: before 5.10.0-60.79.0.103

python3-perf-debuginfo: before 5.10.0-60.79.0.103

python3-perf: before 5.10.0-60.79.0.103

kernel-tools: before 5.10.0-60.79.0.103

kernel: before 5.10.0-60.79.0.103

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1056

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) Use-after-free

EUVDB-ID: #VU71481

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-2022-4696

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 io_uring and the IORING_OP_SPLICE operation. A local 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: 22.03 LTS

perf-debuginfo: before 5.10.0-60.79.0.103

kernel-devel: before 5.10.0-60.79.0.103

bpftool: before 5.10.0-60.79.0.103

kernel-source: before 5.10.0-60.79.0.103

kernel-headers: before 5.10.0-60.79.0.103

kernel-debugsource: before 5.10.0-60.79.0.103

kernel-tools-debuginfo: before 5.10.0-60.79.0.103

kernel-debuginfo: before 5.10.0-60.79.0.103

bpftool-debuginfo: before 5.10.0-60.79.0.103

perf: before 5.10.0-60.79.0.103

kernel-tools-devel: before 5.10.0-60.79.0.103

python3-perf-debuginfo: before 5.10.0-60.79.0.103

python3-perf: before 5.10.0-60.79.0.103

kernel-tools: before 5.10.0-60.79.0.103

kernel: before 5.10.0-60.79.0.103

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1056

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.