openEuler update for kernel

Published: 2021-10-30

Risk	Low
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2020-26141 CVE-2020-26145 CVE-2021-42252 CVE-2021-42739
CWE-ID	CWE-20 CWE-787 CWE-119
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software	openEuler Operating systems & Components / Operating system python2-perf Operating systems & Components / Operating system package or component kernel-debuginfo Operating systems & Components / Operating system package or component python2-perf-debuginfo 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-tools Operating systems & Components / Operating system package or component kernel-debugsource Operating systems & Components / Operating system package or component kernel-tools-devel Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component bpftool-debuginfo Operating systems & Components / Operating system package or component perf-debuginfo Operating systems & Components / Operating system package or component kernel-devel 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 perf 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) Input validation error

EUVDB-ID: #VU53176

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-26141

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the Wi-Fi implementation does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. A remote attacker on the local network can inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

python2-perf: before 4.19.90-2110.8.0.0120

kernel-debuginfo: before 4.19.90-2110.8.0.0120

python2-perf-debuginfo: before 4.19.90-2110.8.0.0120

python3-perf-debuginfo: before 4.19.90-2110.8.0.0120

bpftool: before 4.19.90-2110.8.0.0120

kernel-tools: before 4.19.90-2110.8.0.0120

kernel-debugsource: before 4.19.90-2110.8.0.0120

kernel-tools-devel: before 4.19.90-2110.8.0.0120

python3-perf: before 4.19.90-2110.8.0.0120

bpftool-debuginfo: before 4.19.90-2110.8.0.0120

perf-debuginfo: before 4.19.90-2110.8.0.0120

kernel-devel: before 4.19.90-2110.8.0.0120

kernel-tools-debuginfo: before 4.19.90-2110.8.0.0120

kernel-source: before 4.19.90-2110.8.0.0120

perf: before 4.19.90-2110.8.0.0120

kernel: before 4.19.90-2110.8.0.0120

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1407

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

2) Input validation error

EUVDB-ID: #VU53155

Risk: Low

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

CVE-ID: CVE-2020-26145

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. A remote attacker on the local network can inject arbitrary network packets independent of the network configuration.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

python2-perf: before 4.19.90-2110.8.0.0120

kernel-debuginfo: before 4.19.90-2110.8.0.0120

python2-perf-debuginfo: before 4.19.90-2110.8.0.0120

python3-perf-debuginfo: before 4.19.90-2110.8.0.0120

bpftool: before 4.19.90-2110.8.0.0120

kernel-tools: before 4.19.90-2110.8.0.0120

kernel-debugsource: before 4.19.90-2110.8.0.0120

kernel-tools-devel: before 4.19.90-2110.8.0.0120

python3-perf: before 4.19.90-2110.8.0.0120

bpftool-debuginfo: before 4.19.90-2110.8.0.0120

perf-debuginfo: before 4.19.90-2110.8.0.0120

kernel-devel: before 4.19.90-2110.8.0.0120

kernel-tools-debuginfo: before 4.19.90-2110.8.0.0120

kernel-source: before 4.19.90-2110.8.0.0120

perf: before 4.19.90-2110.8.0.0120

kernel: before 4.19.90-2110.8.0.0120

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1407

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

3) Out-of-bounds write

EUVDB-ID: #VU93833

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-2021-42252

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to an out-of-bounds write within the aspeed_lpc_ctrl_mmap() function in drivers/soc/aspeed/aspeed-lpc-ctrl.c. A local user can execute arbitrary code.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

python2-perf: before 4.19.90-2110.8.0.0120

kernel-debuginfo: before 4.19.90-2110.8.0.0120

python2-perf-debuginfo: before 4.19.90-2110.8.0.0120

python3-perf-debuginfo: before 4.19.90-2110.8.0.0120

bpftool: before 4.19.90-2110.8.0.0120

kernel-tools: before 4.19.90-2110.8.0.0120

kernel-debugsource: before 4.19.90-2110.8.0.0120

kernel-tools-devel: before 4.19.90-2110.8.0.0120

python3-perf: before 4.19.90-2110.8.0.0120

bpftool-debuginfo: before 4.19.90-2110.8.0.0120

perf-debuginfo: before 4.19.90-2110.8.0.0120

kernel-devel: before 4.19.90-2110.8.0.0120

kernel-tools-debuginfo: before 4.19.90-2110.8.0.0120

kernel-source: before 4.19.90-2110.8.0.0120

perf: before 4.19.90-2110.8.0.0120

kernel: before 4.19.90-2110.8.0.0120

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1407

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) Buffer overflow

EUVDB-ID: #VU59474

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-42739

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary within the firewire subsystem in the Linux kernel in drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c files. A local privileged user can run a specially crafted program tat calls avc_ca_pmt() function to trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

python2-perf: before 4.19.90-2110.8.0.0120

kernel-debuginfo: before 4.19.90-2110.8.0.0120

python2-perf-debuginfo: before 4.19.90-2110.8.0.0120

python3-perf-debuginfo: before 4.19.90-2110.8.0.0120

bpftool: before 4.19.90-2110.8.0.0120

kernel-tools: before 4.19.90-2110.8.0.0120

kernel-debugsource: before 4.19.90-2110.8.0.0120

kernel-tools-devel: before 4.19.90-2110.8.0.0120

python3-perf: before 4.19.90-2110.8.0.0120

bpftool-debuginfo: before 4.19.90-2110.8.0.0120

perf-debuginfo: before 4.19.90-2110.8.0.0120

kernel-devel: before 4.19.90-2110.8.0.0120

kernel-tools-debuginfo: before 4.19.90-2110.8.0.0120

kernel-source: before 4.19.90-2110.8.0.0120

perf: before 4.19.90-2110.8.0.0120

kernel: before 4.19.90-2110.8.0.0120

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1407

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.