Fedora 34 update for runc
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-30465 |
| CWE-ID | CWE-254 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software |
Fedora Operating systems & Components / Operating system runc Operating systems & Components / Operating system package or component |
| Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Security features bypass
EUVDB-ID: #VU53399
Risk: Low
CVSSv4.0: 4.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-30465
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the security features bypass issue. A remote authenticated attacker on the local network can perform a symlink exchange attack and host filesystem being bind-mounted into the container.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 34
runc: before 1.0.0-378.rc95.fc34
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2021-0440f235a0
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
