Information disclosure in Buildah



Published: 2021-07-20
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-3602
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		buildah
Client/Desktop applications / Software for system administration

Vendor Container Projects

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU54940

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3602

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to podman build command with the --isolation chroot flag includes environment variables from the host. A remote attacker with access to the container can obtain sensitive information from environment variables.

Mitigation

Install update from vendor's website.

Vulnerable software versions

buildah: 1.16.0 - 1.21.2

External links

http://github.com/containers/buildah/releases/tag/v1.17.2
http://github.com/containers/buildah/releases/tag/v1.16.8


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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