openEuler update for kernel

Published: 2022-02-26

Risk	High
Patch available	YES
Number of vulnerabilities	5
CVE-ID	CVE-2022-0492 CVE-2022-24448 CVE-2022-0435 CVE-2022-24959 CVE-2022-24958
CWE-ID	CWE-264 CWE-909 CWE-121 CWE-401 CWE-763
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system bpftool-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 python3-perf Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component kernel-debuginfo 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 perf-debuginfo 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 python2-perf Operating systems & Components / Operating system package or component kernel-tools 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 Operating systems & Components / Operating system package or component
Vendor	openEuler

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU61245

Risk: Low

CVSSv3.1: 7.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2022-0492

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

Exploit availability: Yes

Description

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

The vulnerability exists due to a logic error within the cgroup_release_agent_write() function in kernel/cgroup/cgroup-v1.c. A local user can use the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2202.3.0.0138

kernel-tools-devel: before 4.19.90-2202.3.0.0138

kernel-devel: before 4.19.90-2202.3.0.0138

python3-perf: before 4.19.90-2202.3.0.0138

bpftool: before 4.19.90-2202.3.0.0138

kernel-debuginfo: before 4.19.90-2202.3.0.0138

python3-perf-debuginfo: before 4.19.90-2202.3.0.0138

perf: before 4.19.90-2202.3.0.0138

perf-debuginfo: before 4.19.90-2202.3.0.0138

kernel-source: before 4.19.90-2202.3.0.0138

python2-perf-debuginfo: before 4.19.90-2202.3.0.0138

python2-perf: before 4.19.90-2202.3.0.0138

kernel-tools: before 4.19.90-2202.3.0.0138

kernel-debugsource: before 4.19.90-2202.3.0.0138

kernel-tools-debuginfo: before 4.19.90-2202.3.0.0138

kernel: before 4.19.90-2202.3.0.0138

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1539

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, a fully functional exploit for this vulnerability is available.

2) Missing initialization of resource

EUVDB-ID: #VU61211

Risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24448

CWE-ID: CWE-909 - Missing initialization of resource

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to missing initialization of resource within the fs/nfs/dir.c in the Linux kernel. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2202.3.0.0138

kernel-tools-devel: before 4.19.90-2202.3.0.0138

kernel-devel: before 4.19.90-2202.3.0.0138

python3-perf: before 4.19.90-2202.3.0.0138

bpftool: before 4.19.90-2202.3.0.0138

kernel-debuginfo: before 4.19.90-2202.3.0.0138

python3-perf-debuginfo: before 4.19.90-2202.3.0.0138

perf: before 4.19.90-2202.3.0.0138

perf-debuginfo: before 4.19.90-2202.3.0.0138

kernel-source: before 4.19.90-2202.3.0.0138

python2-perf-debuginfo: before 4.19.90-2202.3.0.0138

python2-perf: before 4.19.90-2202.3.0.0138

kernel-tools: before 4.19.90-2202.3.0.0138

kernel-debugsource: before 4.19.90-2202.3.0.0138

kernel-tools-debuginfo: before 4.19.90-2202.3.0.0138

kernel: before 4.19.90-2202.3.0.0138

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1539

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) Stack-based buffer overflow

EUVDB-ID: #VU61216

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0435

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Linux kernel networking module for the Transparent Inter-Process Communication (TIPC) protocol. A remote unauthenticated attacker can send specially crafted traffic to the system, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that the TIPC bearer is set up.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2202.3.0.0138

kernel-tools-devel: before 4.19.90-2202.3.0.0138

kernel-devel: before 4.19.90-2202.3.0.0138

python3-perf: before 4.19.90-2202.3.0.0138

bpftool: before 4.19.90-2202.3.0.0138

kernel-debuginfo: before 4.19.90-2202.3.0.0138

python3-perf-debuginfo: before 4.19.90-2202.3.0.0138

perf: before 4.19.90-2202.3.0.0138

perf-debuginfo: before 4.19.90-2202.3.0.0138

kernel-source: before 4.19.90-2202.3.0.0138

python2-perf-debuginfo: before 4.19.90-2202.3.0.0138

python2-perf: before 4.19.90-2202.3.0.0138

kernel-tools: before 4.19.90-2202.3.0.0138

kernel-debugsource: before 4.19.90-2202.3.0.0138

kernel-tools-debuginfo: before 4.19.90-2202.3.0.0138

kernel: before 4.19.90-2202.3.0.0138

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1539

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.

4) Memory leak

EUVDB-ID: #VU62482

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-2022-24959

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the yam_siocdevprivate() function in drivers/net/hamradio/yam.c. A local user can perform a denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2202.3.0.0138

kernel-tools-devel: before 4.19.90-2202.3.0.0138

kernel-devel: before 4.19.90-2202.3.0.0138

python3-perf: before 4.19.90-2202.3.0.0138

bpftool: before 4.19.90-2202.3.0.0138

kernel-debuginfo: before 4.19.90-2202.3.0.0138

python3-perf-debuginfo: before 4.19.90-2202.3.0.0138

perf: before 4.19.90-2202.3.0.0138

perf-debuginfo: before 4.19.90-2202.3.0.0138

kernel-source: before 4.19.90-2202.3.0.0138

python2-perf-debuginfo: before 4.19.90-2202.3.0.0138

python2-perf: before 4.19.90-2202.3.0.0138

kernel-tools: before 4.19.90-2202.3.0.0138

kernel-debugsource: before 4.19.90-2202.3.0.0138

kernel-tools-debuginfo: before 4.19.90-2202.3.0.0138

kernel: before 4.19.90-2202.3.0.0138

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1539

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.

5) Release of invalid pointer or reference

EUVDB-ID: #VU63315

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-2022-24958

CWE-ID: CWE-763 - Release of invalid pointer or reference

Exploit availability: No

Description

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

The vulnerability exists due to release of illegal memory vulnerability in the drivers/usb/gadget/legacy/inode.c. A remote attacker can send specially crafted data and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP3

bpftool-debuginfo: before 4.19.90-2202.3.0.0138

kernel-tools-devel: before 4.19.90-2202.3.0.0138

kernel-devel: before 4.19.90-2202.3.0.0138

python3-perf: before 4.19.90-2202.3.0.0138

bpftool: before 4.19.90-2202.3.0.0138

kernel-debuginfo: before 4.19.90-2202.3.0.0138

python3-perf-debuginfo: before 4.19.90-2202.3.0.0138

perf: before 4.19.90-2202.3.0.0138

perf-debuginfo: before 4.19.90-2202.3.0.0138

kernel-source: before 4.19.90-2202.3.0.0138

python2-perf-debuginfo: before 4.19.90-2202.3.0.0138

python2-perf: before 4.19.90-2202.3.0.0138

kernel-tools: before 4.19.90-2202.3.0.0138

kernel-debugsource: before 4.19.90-2202.3.0.0138

kernel-tools-debuginfo: before 4.19.90-2202.3.0.0138

kernel: before 4.19.90-2202.3.0.0138

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1539

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.