openEuler 22.03 LTS SP1 update for kernel



Risk Medium
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2023-3865
CVE-2023-3866
CVE-2023-4132
CVE-2023-4273
CWE-ID CWE-125
CWE-476
CWE-416
CWE-121
Exploitation vector Network
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

kernel-debugsource
Operating systems & Components / Operating system package or component

kernel-debuginfo
Operating systems & Components / Operating system package or component

kernel-source
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

kernel-tools-devel
Operating systems & Components / Operating system package or component

kernel-headers
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

python3-perf-debuginfo
Operating systems & Components / Operating system package or component

kernel-tools-debuginfo
Operating systems & Components / Operating system package or component

perf-debuginfo
Operating systems & Components / Operating system package or component

bpftool
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) Out-of-bounds read

EUVDB-ID: #VU81661

Risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-3865

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

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the ksmbd_smb2_check_message() function in fs/smb/server/smb2misc.c when parsing smb2_hdr structure. A remote user can send specially crafted packets to ksmbd, trigger an out-of-bounds read error and read contents of memory or perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP1

kernel-debugsource: before 5.10.0-136.48.0.126

kernel-debuginfo: before 5.10.0-136.48.0.126

kernel-source: before 5.10.0-136.48.0.126

kernel-devel: before 5.10.0-136.48.0.126

perf: before 5.10.0-136.48.0.126

bpftool-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-devel: before 5.10.0-136.48.0.126

kernel-headers: before 5.10.0-136.48.0.126

python3-perf: before 5.10.0-136.48.0.126

kernel-tools: before 5.10.0-136.48.0.126

python3-perf-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-debuginfo: before 5.10.0-136.48.0.126

perf-debuginfo: before 5.10.0-136.48.0.126

bpftool: before 5.10.0-136.48.0.126

kernel: before 5.10.0-136.48.0.126

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1615


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) NULL pointer dereference

EUVDB-ID: #VU81662

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-3866

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the void __handle_ksmbd_work() function in fs/smb/server/server.c when handling chained requests. A remote attacker can send specially crafted data to the ksmbd and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP1

kernel-debugsource: before 5.10.0-136.48.0.126

kernel-debuginfo: before 5.10.0-136.48.0.126

kernel-source: before 5.10.0-136.48.0.126

kernel-devel: before 5.10.0-136.48.0.126

perf: before 5.10.0-136.48.0.126

bpftool-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-devel: before 5.10.0-136.48.0.126

kernel-headers: before 5.10.0-136.48.0.126

python3-perf: before 5.10.0-136.48.0.126

kernel-tools: before 5.10.0-136.48.0.126

python3-perf-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-debuginfo: before 5.10.0-136.48.0.126

perf-debuginfo: before 5.10.0-136.48.0.126

bpftool: before 5.10.0-136.48.0.126

kernel: before 5.10.0-136.48.0.126

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1615


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: #VU79712

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-4132

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the siano smsusb module in the Linux kernel. A local user can trigger a use-after-free error and crash the kernel.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP1

kernel-debugsource: before 5.10.0-136.48.0.126

kernel-debuginfo: before 5.10.0-136.48.0.126

kernel-source: before 5.10.0-136.48.0.126

kernel-devel: before 5.10.0-136.48.0.126

perf: before 5.10.0-136.48.0.126

bpftool-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-devel: before 5.10.0-136.48.0.126

kernel-headers: before 5.10.0-136.48.0.126

python3-perf: before 5.10.0-136.48.0.126

kernel-tools: before 5.10.0-136.48.0.126

python3-perf-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-debuginfo: before 5.10.0-136.48.0.126

perf-debuginfo: before 5.10.0-136.48.0.126

bpftool: before 5.10.0-136.48.0.126

kernel: before 5.10.0-136.48.0.126

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1615


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) Stack-based buffer overflow

EUVDB-ID: #VU79487

Risk: Low

CVSSv4.0: 5.9 [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:U/U:Clear]

CVE-ID: CVE-2023-4273

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the implementation of the file name reconstruction function in the exFAT driver in Linux kernel. A local user can trigger a stack overflow and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP1

kernel-debugsource: before 5.10.0-136.48.0.126

kernel-debuginfo: before 5.10.0-136.48.0.126

kernel-source: before 5.10.0-136.48.0.126

kernel-devel: before 5.10.0-136.48.0.126

perf: before 5.10.0-136.48.0.126

bpftool-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-devel: before 5.10.0-136.48.0.126

kernel-headers: before 5.10.0-136.48.0.126

python3-perf: before 5.10.0-136.48.0.126

kernel-tools: before 5.10.0-136.48.0.126

python3-perf-debuginfo: before 5.10.0-136.48.0.126

kernel-tools-debuginfo: before 5.10.0-136.48.0.126

perf-debuginfo: before 5.10.0-136.48.0.126

bpftool: before 5.10.0-136.48.0.126

kernel: before 5.10.0-136.48.0.126

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1615


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.



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