Risk | Low |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2021-3760 CVE-2021-43056 |
CWE-ID | CWE-416 CWE-252 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software |
Fedora Operating systems & Components / Operating system kernel Operating systems & Components / Operating system package or component |
Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU63816
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-2021-3760
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in the NFC stack. A local user can trigger use-after-free error to escalate privileges on the system.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 35
kernel: before 5.14.15-300.fc35
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2021-ed8c2e1098
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.
EUVDB-ID: #VU63921
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-2021-43056
CWE-ID:
CWE-252 - Unchecked Return Value
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation error when handling SRR1 register values. A local user can perform a denial of service attack, when the host is running on Power8.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 35
kernel: before 5.14.15-300.fc35
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2021-ed8c2e1098
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.