7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
13.3%
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 containerโs bounding set.
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.
The opencontainers project would like to thank Andrew G. Morgan for responsibly disclosing this issue in accordance with the opencontainers org security policy.
If you have any questions or comments about this advisory:
CPE | Name | Operator | Version |
---|---|---|---|
github.com/opencontainers/runc | lt | 1.1.2 |
github.com/advisories/GHSA-f3fp-gc8g-vw66
github.com/opencontainers/runc/commit/d04de3a9b72d7a2455c1885fc75eb36d02cd17b5
github.com/opencontainers/runc/releases/tag/v1.1.2
github.com/opencontainers/runc/security/advisories/GHSA-f3fp-gc8g-vw66
lists.debian.org/debian-lts-announce/2023/03/msg00023.html
lists.fedoraproject.org/archives/list/[email protected]/message/AVPZBV7ISA7QKRPTC7ZXWKMIQI2HZEBB/
lists.fedoraproject.org/archives/list/[email protected]/message/D77CKD3AXPMU4PMQIQI5Q74SI4JATNND/
lists.fedoraproject.org/archives/list/[email protected]/message/GPQU4YC4AAY54JDXGDQHJEYKSXXG5T2Y/
nvd.nist.gov/vuln/detail/CVE-2022-29162
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
13.3%