openEuler update for kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-34556 CVE-2021-35477 CVE-2021-21781 |
| CWE-ID | CWE-200 CWE-203 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system python3-perf 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 bpftool-debuginfo Operating systems & Components / Operating system package or component kernel-tools-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 bpftool 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 python2-perf-debuginfo Operating systems & Components / Operating system package or component python3-perf-debuginfo Operating systems & Components / Operating system package or component perf-debuginfo Operating systems & Components / Operating system package or component kernel-debuginfo Operating systems & Components / Operating system package or component kernel-debugsource 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) Information disclosure
EUVDB-ID: #VU64203
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-34556
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A local user can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP2
python3-perf: before 4.19.90-2108.8.0.0106
kernel-source: before 4.19.90-2108.8.0.0106
perf: before 4.19.90-2108.8.0.0106
bpftool-debuginfo: before 4.19.90-2108.8.0.0106
kernel-tools-debuginfo: before 4.19.90-2108.8.0.0106
kernel-tools-devel: before 4.19.90-2108.8.0.0106
kernel-devel: before 4.19.90-2108.8.0.0106
bpftool: before 4.19.90-2108.8.0.0106
python2-perf: before 4.19.90-2108.8.0.0106
kernel-tools: before 4.19.90-2108.8.0.0106
python2-perf-debuginfo: before 4.19.90-2108.8.0.0106
python3-perf-debuginfo: before 4.19.90-2108.8.0.0106
perf-debuginfo: before 4.19.90-2108.8.0.0106
kernel-debuginfo: before 4.19.90-2108.8.0.0106
kernel-debugsource: before 4.19.90-2108.8.0.0106
kernel: before 4.19.90-2108.8.0.0106
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
- cpe:2.3:a:openeuler:python3-perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-source:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bpftool-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bpftool:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python2-perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python2-perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1324
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) Observable discrepancy
EUVDB-ID: #VU92412
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-35477
CWE-ID:
CWE-203 - Observable discrepancy
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to observable discrepancy error. A local user can gain access to sensitive information.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP2
python3-perf: before 4.19.90-2108.8.0.0106
kernel-source: before 4.19.90-2108.8.0.0106
perf: before 4.19.90-2108.8.0.0106
bpftool-debuginfo: before 4.19.90-2108.8.0.0106
kernel-tools-debuginfo: before 4.19.90-2108.8.0.0106
kernel-tools-devel: before 4.19.90-2108.8.0.0106
kernel-devel: before 4.19.90-2108.8.0.0106
bpftool: before 4.19.90-2108.8.0.0106
python2-perf: before 4.19.90-2108.8.0.0106
kernel-tools: before 4.19.90-2108.8.0.0106
python2-perf-debuginfo: before 4.19.90-2108.8.0.0106
python3-perf-debuginfo: before 4.19.90-2108.8.0.0106
perf-debuginfo: before 4.19.90-2108.8.0.0106
kernel-debuginfo: before 4.19.90-2108.8.0.0106
kernel-debugsource: before 4.19.90-2108.8.0.0106
kernel: before 4.19.90-2108.8.0.0106
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
- cpe:2.3:a:openeuler:python3-perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-source:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bpftool-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bpftool:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python2-perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python2-perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1324
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) Information disclosure
EUVDB-ID: #VU54395
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-21781
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output in the ARM SIGPAGE functionality. A userland application can read the contents of the sigpage, which can leak kernel memory contents.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP2
python3-perf: before 4.19.90-2108.8.0.0106
kernel-source: before 4.19.90-2108.8.0.0106
perf: before 4.19.90-2108.8.0.0106
bpftool-debuginfo: before 4.19.90-2108.8.0.0106
kernel-tools-debuginfo: before 4.19.90-2108.8.0.0106
kernel-tools-devel: before 4.19.90-2108.8.0.0106
kernel-devel: before 4.19.90-2108.8.0.0106
bpftool: before 4.19.90-2108.8.0.0106
python2-perf: before 4.19.90-2108.8.0.0106
kernel-tools: before 4.19.90-2108.8.0.0106
python2-perf-debuginfo: before 4.19.90-2108.8.0.0106
python3-perf-debuginfo: before 4.19.90-2108.8.0.0106
perf-debuginfo: before 4.19.90-2108.8.0.0106
kernel-debuginfo: before 4.19.90-2108.8.0.0106
kernel-debugsource: before 4.19.90-2108.8.0.0106
kernel: before 4.19.90-2108.8.0.0106
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
- cpe:2.3:a:openeuler:python3-perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-source:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bpftool-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bpftool:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python2-perf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-tools:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python2-perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:perf-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:kernel:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1324
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.
