openEuler update for kernel

Published: 2023-07-29

Risk	Low
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2022-45886 CVE-2023-3390 CVE-2023-35001
CWE-ID	CWE-416 CWE-787
Exploitation vector	Local
Public exploit	Public exploit code for vulnerability #3 is available.
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system perf-debuginfo Operating systems & Components / Operating system package or component kernel-tools Operating systems & Components / Operating system package or component python3-perf-debuginfo Operating systems & Components / Operating system package or component kernel-tools-devel Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component python2-perf Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component kernel-source 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-debuginfo Operating systems & Components / Operating system package or component perf 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-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) Use-after-free

EUVDB-ID: #VU75336

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45886

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/dvb_net.c in Linux kernel. A local user can trigger a race condition and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS SP2

perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools: before 4.19.90-2307.5.0.0211

python3-perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools-devel: before 4.19.90-2307.5.0.0211

kernel-devel: before 4.19.90-2307.5.0.0211

python2-perf: before 4.19.90-2307.5.0.0211

python3-perf: before 4.19.90-2307.5.0.0211

kernel-source: before 4.19.90-2307.5.0.0211

python2-perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools-debuginfo: before 4.19.90-2307.5.0.0211

kernel-debuginfo: before 4.19.90-2307.5.0.0211

perf: before 4.19.90-2307.5.0.0211

bpftool: before 4.19.90-2307.5.0.0211

bpftool-debuginfo: before 4.19.90-2307.5.0.0211

kernel-debugsource: before 4.19.90-2307.5.0.0211

kernel: before 4.19.90-2307.5.0.0211

CPE2.3

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1448

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: #VU78007

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-2023-3390

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 net/netfilter/nf_tables_api.c in the Linux kernel netfilter subsystem. A local user can trigger a use-after-fee error and escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS SP2

perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools: before 4.19.90-2307.5.0.0211

python3-perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools-devel: before 4.19.90-2307.5.0.0211

kernel-devel: before 4.19.90-2307.5.0.0211

python2-perf: before 4.19.90-2307.5.0.0211

python3-perf: before 4.19.90-2307.5.0.0211

kernel-source: before 4.19.90-2307.5.0.0211

python2-perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools-debuginfo: before 4.19.90-2307.5.0.0211

kernel-debuginfo: before 4.19.90-2307.5.0.0211

perf: before 4.19.90-2307.5.0.0211

bpftool: before 4.19.90-2307.5.0.0211

bpftool-debuginfo: before 4.19.90-2307.5.0.0211

kernel-debugsource: before 4.19.90-2307.5.0.0211

kernel: before 4.19.90-2307.5.0.0211

CPE2.3

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1448

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) Out-of-bounds write

EUVDB-ID: #VU78326

Risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-35001

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error within the nft_byteorder() function. A local user can trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS SP2

perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools: before 4.19.90-2307.5.0.0211

python3-perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools-devel: before 4.19.90-2307.5.0.0211

kernel-devel: before 4.19.90-2307.5.0.0211

python2-perf: before 4.19.90-2307.5.0.0211

python3-perf: before 4.19.90-2307.5.0.0211

kernel-source: before 4.19.90-2307.5.0.0211

python2-perf-debuginfo: before 4.19.90-2307.5.0.0211

kernel-tools-debuginfo: before 4.19.90-2307.5.0.0211

kernel-debuginfo: before 4.19.90-2307.5.0.0211

perf: before 4.19.90-2307.5.0.0211

bpftool: before 4.19.90-2307.5.0.0211

bpftool-debuginfo: before 4.19.90-2307.5.0.0211

kernel-debugsource: before 4.19.90-2307.5.0.0211

kernel: before 4.19.90-2307.5.0.0211

CPE2.3

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1448

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.