ghsa-f3fp-gc8g-vw66
Vulnerability from github
Impact
A bug was found in runc where runc exec --cap executed processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2).
This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set.
Patches
This bug has been fixed in runc 1.1.2. Users should update to this version as soon as possible.
This fix changes runc exec --cap behavior such that the additional capabilities granted to the process being executed (as specified via --cap arguments) do not include inheritable capabilities.
In addition, runc spec is changed to not set any inheritable capabilities in the created example OCI spec (config.json) file.
Credits
The opencontainers project would like to thank Andrew G. Morgan for responsibly disclosing this issue in accordance with the opencontainers org security policy.
For more information
If you have any questions or comments about this advisory:
- Open an issue
- Email us at security@opencontainers.org if you think you’ve found a security bug
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/opencontainers/runc"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-29162"
],
"database_specific": {
"cwe_ids": [
"CWE-276"
],
"github_reviewed": true,
"github_reviewed_at": "2022-05-24T17:36:56Z",
"nvd_published_at": "2022-05-17T21:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\n\nA bug was found in runc where `runc exec --cap` executed processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2).\n\nThis bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container\u0027s bounding set.\n\n### Patches\nThis bug has been fixed in runc 1.1.2. Users should update to this version as soon as possible.\n\nThis fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities.\n\nIn addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file.\n\n### Credits\nThe opencontainers project would like to thank [Andrew G. Morgan](https://github.com/AndrewGMorgan) for responsibly disclosing this issue in accordance with the [opencontainers org security policy](https://github.com/opencontainers/.github/blob/master/SECURITY.md).\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* [Open an issue](https://github.com/opencontainers/runc/issues/new)\n* Email us at [security@opencontainers.org](mailto:security@opencontainers.org) if you think you\u2019ve found a security bug",
"id": "GHSA-f3fp-gc8g-vw66",
"modified": "2023-03-27T22:23:50Z",
"published": "2022-05-24T17:36:56Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/opencontainers/runc/security/advisories/GHSA-f3fp-gc8g-vw66"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-29162"
},
{
"type": "WEB",
"url": "https://github.com/opencontainers/runc/commit/d04de3a9b72d7a2455c1885fc75eb36d02cd17b5"
},
{
"type": "WEB",
"url": "https://github.com/opencontainers/runc/releases/tag/v1.1.2"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVPZBV7ISA7QKRPTC7ZXWKMIQI2HZEBB"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D77CKD3AXPMU4PMQIQI5Q74SI4JATNND"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPQU4YC4AAY54JDXGDQHJEYKSXXG5T2Y"
},
{
"type": "PACKAGE",
"url": "github.com/opencontainers/runc"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "Default inheritable capabilities for linux container should be empty"
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.