openEuler 20.03 LTS SP3 update for kernel



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-45934
CVE-2022-41858
CVE-2022-4095
CWE-ID CWE-190
CWE-476
CWE-415
Exploitation vector Local
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

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

kernel-tools-devel
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

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

python2-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

perf
Operating systems & Components / Operating system package or component

kernel-debugsource
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
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 3 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU70464

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-2022-45934

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow within the l2cap_config_req() function in net/bluetooth/l2cap_core.c in Linux kernel. A local user can pass specially crafted L2CAP_CONF_REQ packets to the device, trigger an integer overflow and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

kernel-devel: before 4.19.90-2212.1.0.0180

kernel-tools-devel: before 4.19.90-2212.1.0.0180

python3-perf-debuginfo: before 4.19.90-2212.1.0.0180

kernel-tools-debuginfo: before 4.19.90-2212.1.0.0180

kernel-source: before 4.19.90-2212.1.0.0180

python2-perf-debuginfo: before 4.19.90-2212.1.0.0180

python3-perf: before 4.19.90-2212.1.0.0180

python2-perf: before 4.19.90-2212.1.0.0180

bpftool-debuginfo: before 4.19.90-2212.1.0.0180

perf: before 4.19.90-2212.1.0.0180

kernel-debugsource: before 4.19.90-2212.1.0.0180

kernel-debuginfo: before 4.19.90-2212.1.0.0180

perf-debuginfo: before 4.19.90-2212.1.0.0180

kernel-tools: before 4.19.90-2212.1.0.0180

bpftool: before 4.19.90-2212.1.0.0180

kernel: before 4.19.90-2212.1.0.0180

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2134


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) NULL pointer dereference

EUVDB-ID: #VU70467

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-2022-41858

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 a NULL pointer dereference error within the sl_tx_timeout() function in drivers/net/slip in Linux kernel. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

kernel-devel: before 4.19.90-2212.1.0.0180

kernel-tools-devel: before 4.19.90-2212.1.0.0180

python3-perf-debuginfo: before 4.19.90-2212.1.0.0180

kernel-tools-debuginfo: before 4.19.90-2212.1.0.0180

kernel-source: before 4.19.90-2212.1.0.0180

python2-perf-debuginfo: before 4.19.90-2212.1.0.0180

python3-perf: before 4.19.90-2212.1.0.0180

python2-perf: before 4.19.90-2212.1.0.0180

bpftool-debuginfo: before 4.19.90-2212.1.0.0180

perf: before 4.19.90-2212.1.0.0180

kernel-debugsource: before 4.19.90-2212.1.0.0180

kernel-debuginfo: before 4.19.90-2212.1.0.0180

perf-debuginfo: before 4.19.90-2212.1.0.0180

kernel-tools: before 4.19.90-2212.1.0.0180

bpftool: before 4.19.90-2212.1.0.0180

kernel: before 4.19.90-2212.1.0.0180

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2134


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) Double Free

EUVDB-ID: #VU69805

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-2022-4095

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the cmd_hdl_filter() function in drivers/staging/rtl8712/rtl8712_cmd.c. A local user can trigger a double free error and execute arbitrary code with escalated privileges.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

kernel-devel: before 4.19.90-2212.1.0.0180

kernel-tools-devel: before 4.19.90-2212.1.0.0180

python3-perf-debuginfo: before 4.19.90-2212.1.0.0180

kernel-tools-debuginfo: before 4.19.90-2212.1.0.0180

kernel-source: before 4.19.90-2212.1.0.0180

python2-perf-debuginfo: before 4.19.90-2212.1.0.0180

python3-perf: before 4.19.90-2212.1.0.0180

python2-perf: before 4.19.90-2212.1.0.0180

bpftool-debuginfo: before 4.19.90-2212.1.0.0180

perf: before 4.19.90-2212.1.0.0180

kernel-debugsource: before 4.19.90-2212.1.0.0180

kernel-debuginfo: before 4.19.90-2212.1.0.0180

perf-debuginfo: before 4.19.90-2212.1.0.0180

kernel-tools: before 4.19.90-2212.1.0.0180

bpftool: before 4.19.90-2212.1.0.0180

kernel: before 4.19.90-2212.1.0.0180

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2134


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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