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amazonAmazonALAS2-2022-1807
HistoryJul 06, 2022 - 2:44 a.m.

Medium: amazon-ssm-agent

2022-07-0602:44:00
alas.aws.amazon.com
8

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

9 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

73.9%

Issue Overview:

A buffer overflow flaw was found in Golang’s library encoding/pem. This flaw allows an attacker to use a large PEM input (more than 5 MB) ), causing a stack overflow in Decode, which leads to a loss of availability. (CVE-2022-24675)

Affected Packages:

amazon-ssm-agent

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update amazon-ssm-agent to update your system.

New Packages:

aarch64:  
    amazon-ssm-agent-3.1.1575.0-1.amzn2.aarch64  
    amazon-ssm-agent-debuginfo-3.1.1575.0-1.amzn2.aarch64  
  
src:  
    amazon-ssm-agent-3.1.1575.0-1.amzn2.src  
  
x86_64:  
    amazon-ssm-agent-3.1.1575.0-1.amzn2.x86_64  
    amazon-ssm-agent-debuginfo-3.1.1575.0-1.amzn2.x86_64  

Additional References

Red Hat: CVE-2022-24675

Mitre: CVE-2022-24675

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

9 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

73.9%