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amazonAmazonALAS2-2019-1169
HistoryMar 07, 2019 - 5:56 a.m.

Medium: python3

2019-03-0705:56:00
alas.aws.amazon.com
15

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

8.1 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

0.018 Low

EPSS

Percentile

88.0%

Issue Overview:

A null pointer dereference vulnerability was found in the certificate parsing code in Python. This causes a denial of service to applications when parsing specially crafted certificates. This vulnerability is unlikely to be triggered if application enables SSL/TLS certificate validation and accepts certificates only from trusted root certificate authorities.(CVE-2019-5010)

Affected Packages:

python3

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 python3 to update your system.

New Packages:

aarch64:  
    python3-3.7.2-4.amzn2.0.1.aarch64  
    python3-libs-3.7.2-4.amzn2.0.1.aarch64  
    python3-devel-3.7.2-4.amzn2.0.1.aarch64  
    python3-tools-3.7.2-4.amzn2.0.1.aarch64  
    python3-tkinter-3.7.2-4.amzn2.0.1.aarch64  
    python3-test-3.7.2-4.amzn2.0.1.aarch64  
    python3-debug-3.7.2-4.amzn2.0.1.aarch64  
    python3-debuginfo-3.7.2-4.amzn2.0.1.aarch64  
  
i686:  
    python3-3.7.2-4.amzn2.0.1.i686  
    python3-libs-3.7.2-4.amzn2.0.1.i686  
    python3-devel-3.7.2-4.amzn2.0.1.i686  
    python3-tools-3.7.2-4.amzn2.0.1.i686  
    python3-tkinter-3.7.2-4.amzn2.0.1.i686  
    python3-test-3.7.2-4.amzn2.0.1.i686  
    python3-debug-3.7.2-4.amzn2.0.1.i686  
    python3-debuginfo-3.7.2-4.amzn2.0.1.i686  
  
src:  
    python3-3.7.2-4.amzn2.0.1.src  
  
x86_64:  
    python3-3.7.2-4.amzn2.0.1.x86_64  
    python3-libs-3.7.2-4.amzn2.0.1.x86_64  
    python3-devel-3.7.2-4.amzn2.0.1.x86_64  
    python3-tools-3.7.2-4.amzn2.0.1.x86_64  
    python3-tkinter-3.7.2-4.amzn2.0.1.x86_64  
    python3-test-3.7.2-4.amzn2.0.1.x86_64  
    python3-debug-3.7.2-4.amzn2.0.1.x86_64  
    python3-debuginfo-3.7.2-4.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2019-5010

Mitre: CVE-2019-5010

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

8.1 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

0.018 Low

EPSS

Percentile

88.0%