GHSA-7638-r9r3-rmjj

Source

https://github.com/advisories/GHSA-7638-r9r3-rmjj

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/07/GHSA-7638-r9r3-rmjj/GHSA-7638-r9r3-rmjj.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-7638-r9r3-rmjj

Aliases

Related

CGA-2vj4-5vmv-c77c

Published

2021-07-19T15:19:09Z

Modified

2023-11-08T04:06:11.111741Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

Buildah processes using chroot isolation may leak environment values to intermediate processes

Details

Impact

When running processes using "chroot" isolation, the process being run can examine the environment variables of its immediate parent and grandparent processes (CVE-2021-3602). This isolation type is often used when running buildah in unprivileged containers, and it is often used to do so in CI/CD environments. If sensitive information is exposed to the original buildah process through its environment, that information will unintentionally be shared with child processes which it starts as part of handling RUN instructions or during buildah run. The commands that buildah is instructed to run can read that information if they choose to.

Patches

Users should upgrade packages, or images which contain packages, to include version 1.21.3 or later.

Workarounds

As a workaround, invoking buildah in a container under env -i to have it started with a reinitialized environment should prevent the leakage.

For more information

If you have any questions or comments about this advisory: * Open an issue in buildah * Email us at the buildah general mailing list, or the podman security mailing list if it's sensitive.

Database specific

{
    "nvd_published_at": "2022-03-03T19:15:00Z",
    "cwe_ids": [
        "CWE-200",
        "CWE-212"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2021-07-15T20:26:57Z"
}

References

Affected packages

Go / github.com/containers/buildah

Package

Name: github.com/containers/buildah; View open source insights on deps.dev
Purl: pkg:golang/github.com/containers/buildah

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.16.8

Database specific

{
    "last_known_affected_version_range": "<= 1.16.7"
}

Go / github.com/containers/buildah

Package

Name: github.com/containers/buildah; View open source insights on deps.dev
Purl: pkg:golang/github.com/containers/buildah

Affected ranges

Type: SEMVER
Events: Introduced

1.17.0

Fixed

1.17.2

Database specific

{
    "last_known_affected_version_range": "<= 1.17.1"
}

Go / github.com/containers/buildah

Package

Name: github.com/containers/buildah; View open source insights on deps.dev
Purl: pkg:golang/github.com/containers/buildah

Affected ranges

Type: SEMVER
Events: Introduced

1.18.0

Fixed

1.19.9

Database specific

{
    "last_known_affected_version_range": "<= 1.19.8"
}

Go / github.com/containers/buildah

Package

Name: github.com/containers/buildah; View open source insights on deps.dev
Purl: pkg:golang/github.com/containers/buildah

Affected ranges

Type: SEMVER
Events: Introduced

1.20.0

Fixed

1.21.3

Database specific

{
    "last_known_affected_version_range": "<= 1.21.2"
}