Red Hat Enterprise Linux 7 Extras update for docker



Published: 2021-05-31
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
Subscribe
docker (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux for Power, little endian
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server
Operating systems & Components / Operating system

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU53399

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-30465

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

docker (Red Hat package): 1.13.1-74.git6e3bb8e.el7 - 1.13.1-161.git64e9980.el7_8

Red Hat Enterprise Linux for Power, little endian: 7

Red Hat Enterprise Linux for IBM z Systems: 7

Red Hat Enterprise Linux Server: 7


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:2144

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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