openEuler 20.03 LTS SP1 update for kernel

Published: 2024-05-08 | Updated: 2024-05-13

Risk	Medium
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2023-46838 CVE-2023-52340 CVE-2024-1086
CWE-ID	CWE-20 CWE-400 CWE-416
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #3 is available.
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system python2-perf-debuginfo Operating systems & Components / Operating system package or component kernel-tools-debuginfo Operating systems & Components / Operating system package or component kernel-debugsource Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component kernel-debuginfo Operating systems & Components / Operating system package or component kernel-tools-devel Operating systems & Components / Operating system package or component perf Operating systems & Components / Operating system package or component perf-debuginfo Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component python2-perf Operating systems & Components / Operating system package or component bpftool-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 bpftool Operating systems & Components / Operating system package or component kernel-devel 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) Input validation error

EUVDB-ID: #VU85682

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-2023-46838

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of network packets at the backend. An unprivileged guest can send zero-length packets to the OS kernel and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

python2-perf-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools-debuginfo: before 4.19.90-2402.5.0.0239

kernel-debugsource: before 4.19.90-2402.5.0.0239

kernel-source: before 4.19.90-2402.5.0.0239

kernel-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools-devel: before 4.19.90-2402.5.0.0239

perf: before 4.19.90-2402.5.0.0239

perf-debuginfo: before 4.19.90-2402.5.0.0239

python3-perf: before 4.19.90-2402.5.0.0239

python2-perf: before 4.19.90-2402.5.0.0239

bpftool-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools: before 4.19.90-2402.5.0.0239

python3-perf-debuginfo: before 4.19.90-2402.5.0.0239

bpftool: before 4.19.90-2402.5.0.0239

kernel-devel: before 4.19.90-2402.5.0.0239

kernel: before 4.19.90-2402.5.0.0239

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1178

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) Resource exhaustion

EUVDB-ID: #VU88378

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-2023-52340

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to an error when processing very large ICMPv6 packets. A remote attacker can send a flood of IPv6 ICMP6 PTB messages, cause the high lock contention and increased CPU usage, leading to a denial of service.

Successful vulnerability exploitation requires a attacker to be on the local network or have a high bandwidth connection.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

python2-perf-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools-debuginfo: before 4.19.90-2402.5.0.0239

kernel-debugsource: before 4.19.90-2402.5.0.0239

kernel-source: before 4.19.90-2402.5.0.0239

kernel-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools-devel: before 4.19.90-2402.5.0.0239

perf: before 4.19.90-2402.5.0.0239

perf-debuginfo: before 4.19.90-2402.5.0.0239

python3-perf: before 4.19.90-2402.5.0.0239

python2-perf: before 4.19.90-2402.5.0.0239

bpftool-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools: before 4.19.90-2402.5.0.0239

python3-perf-debuginfo: before 4.19.90-2402.5.0.0239

bpftool: before 4.19.90-2402.5.0.0239

kernel-devel: before 4.19.90-2402.5.0.0239

kernel: before 4.19.90-2402.5.0.0239

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1178

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) Use-after-free

EUVDB-ID: #VU86577

Risk: Low

CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2024-1086

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 netfilter nf_tables component in Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

python2-perf-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools-debuginfo: before 4.19.90-2402.5.0.0239

kernel-debugsource: before 4.19.90-2402.5.0.0239

kernel-source: before 4.19.90-2402.5.0.0239

kernel-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools-devel: before 4.19.90-2402.5.0.0239

perf: before 4.19.90-2402.5.0.0239

perf-debuginfo: before 4.19.90-2402.5.0.0239

python3-perf: before 4.19.90-2402.5.0.0239

python2-perf: before 4.19.90-2402.5.0.0239

bpftool-debuginfo: before 4.19.90-2402.5.0.0239

kernel-tools: before 4.19.90-2402.5.0.0239

python3-perf-debuginfo: before 4.19.90-2402.5.0.0239

bpftool: before 4.19.90-2402.5.0.0239

kernel-devel: before 4.19.90-2402.5.0.0239

kernel: before 4.19.90-2402.5.0.0239

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1178

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.