AmazonALAS-2021-1540Medium: containerd
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
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
13.3%
Issue Overview:
A bug was found in containerd where container root directories and some plugins had insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as setuid), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. (CVE-2021-41103)
Affected Packages:
containerd
Issue Correction:
Run yum update containerd to update your system.
New Packages:
src:
containerd-1.4.6-3.9.amzn1.src
x86_64:
containerd-stress-1.4.6-3.9.amzn1.x86_64
containerd-debuginfo-1.4.6-3.9.amzn1.x86_64
containerd-1.4.6-3.9.amzn1.x86_64
Additional References
Red Hat: CVE-2021-41103
Mitre: CVE-2021-41103
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Amazon Linux | 1 | x86_64 | containerd-stress | < 1.4.6-3.9.amzn1 | containerd-stress-1.4.6-3.9.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | containerd-debuginfo | < 1.4.6-3.9.amzn1 | containerd-debuginfo-1.4.6-3.9.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | containerd | < 1.4.6-3.9.amzn1 | containerd-1.4.6-3.9.amzn1.x86_64.rpm |
Related
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
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
13.3%