openEuler update for kernel



Risk Medium
Patch available YES
Number of vulnerabilities 8
CVE-ID CVE-2022-0002
CVE-2022-29582
CVE-2022-1195
CVE-2022-20008
CVE-2022-1012
CVE-2022-1734
CVE-2022-29581
CVE-2022-1516
CWE-ID CWE-200
CWE-416
CWE-908
CWE-401
CWE-911
CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 openEuler
Operating systems & Components / Operating system

python3-perf-debuginfo
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

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

perf
Operating systems & Components / Operating system package or component

python2-perf-debuginfo
Operating systems & Components / Operating system package or component

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

kernel-tools-devel
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

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

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

Vendor openEuler

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU61199

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-0002

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to non-transparent sharing of branch predictor within a context. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


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: #VU63792

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-2022-29582

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 the io_uring timeouts() function in the Linux kernel. A local user can trigger a race condition between timeout flush and removal to cause a denial of service or escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


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) Use-after-free

EUVDB-ID: #VU63430

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-1195

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in the drivers/net/hamradio. A local user can cause a denial of service (DOS) when the mkiss or sixpack device is detached.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

4) Use of uninitialized resource

EUVDB-ID: #VU63352

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20008

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a local application to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources within the mmc_blk_read_single() function in block.c. A local application can obtain potentially sensitive information from memory when reading from an SD card that triggers errors.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


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.

5) Memory leak

EUVDB-ID: #VU64079

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-1012

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient randomization in the net/ipv4/tcp.c when calculating port offsets in Linux kernel cause by small table perturb size. A remote attacker can cause memory leak and gain access to sensitive information.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


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.

6) Use-after-free

EUVDB-ID: #VU64082

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-2022-1734

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 Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations. A local user can trigger use-after-free to escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


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.

7) Improper update of reference count

EUVDB-ID: #VU63496

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-2022-29581

CWE-ID: CWE-911 - Improper Update of Reference Count

Exploit availability: No

Description

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

The vulnerability exists due to improper update of reference count in net/sched in Linux kernel. A local user can execute arbitrary code with root privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


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.

8) NULL pointer dereference

EUVDB-ID: #VU63158

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-2022-1516

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to NULL pointer dereference error in the Linux kernel’s X.25 set of standardized network protocols functionality. A local user can terminate session using a simulated Ethernet card and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

python3-perf-debuginfo: All versions

bpftool: All versions

bpftool-debuginfo: All versions

kernel-debugsource: All versions

python3-perf: All versions

perf: All versions

python2-perf-debuginfo: All versions

kernel-devel: All versions

kernel-tools-devel: All versions

kernel-source: All versions

kernel-debuginfo: All versions

perf-debuginfo: All versions

kernel-tools-debuginfo: All versions

python2-perf: All versions

kernel-tools: All versions

kernel: All versions

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1691


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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