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amazonAmazonALAS-2021-1523
HistoryJul 19, 2021 - 5:29 p.m.

Medium: containerd

2021-07-1917:29:00
alas.aws.amazon.com
19

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

6.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

0.001 Low

EPSS

Percentile

51.0%

JSON

Issue Overview:

A bug was discovered in containerd where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner of the file or widen access to others. (CVE-2021-32760)

A flaw was found in containerd CRI plugin. Containers launched through containerd’s CRI implementation that share the same image may receive incorrect environment variables, including values that are defined for other containers. The highest threat from this vulnerability is to data confidentiality. (CVE-2021-21334)

Affected Packages:

containerd

Issue Correction:
Run yum update containerd to update your system.

New Packages:

src:  
    containerd-1.4.6-2.7.amzn1.src  
  
x86_64:  
    containerd-stress-1.4.6-2.7.amzn1.x86_64  
    containerd-debuginfo-1.4.6-2.7.amzn1.x86_64  
    containerd-1.4.6-2.7.amzn1.x86_64

Additional References

Red Hat: CVE-2021-21334, CVE-2021-32760

Mitre: CVE-2021-21334, CVE-2021-32760

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6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

6.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

0.001 Low

EPSS

Percentile

51.0%

JSON
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