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amazonAmazonALAS-2020-1432
HistorySep 03, 2020 - 10:08 p.m.

Medium: python34, python35, python36

2020-09-0322:08:00
alas.aws.amazon.com
30

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

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

0.011 Low

EPSS

Percentile

84.3%

JSON

Issue Overview:

Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. (CVE-2020-14422)

Affected Packages:

python34, python35, python36

Issue Correction:
Run yum update python34 to update your system.
Run yum update python36 to update your system.
Run yum update python35 to update your system.

New Packages:

i686:  
    python34-libs-3.4.10-1.52.amzn1.i686  
    python34-tools-3.4.10-1.52.amzn1.i686  
    python34-3.4.10-1.52.amzn1.i686  
    python34-devel-3.4.10-1.52.amzn1.i686  
    python34-test-3.4.10-1.52.amzn1.i686  
    python34-debuginfo-3.4.10-1.52.amzn1.i686  
    python35-tools-3.5.9-1.28.amzn1.i686  
    python35-3.5.9-1.28.amzn1.i686  
    python35-libs-3.5.9-1.28.amzn1.i686  
    python35-debuginfo-3.5.9-1.28.amzn1.i686  
    python35-devel-3.5.9-1.28.amzn1.i686  
    python35-test-3.5.9-1.28.amzn1.i686  
    python36-tools-3.6.12-1.19.amzn1.i686  
    python36-3.6.12-1.19.amzn1.i686  
    python36-debug-3.6.12-1.19.amzn1.i686  
    python36-test-3.6.12-1.19.amzn1.i686  
    python36-libs-3.6.12-1.19.amzn1.i686  
    python36-debuginfo-3.6.12-1.19.amzn1.i686  
    python36-devel-3.6.12-1.19.amzn1.i686  
  
src:  
    python34-3.4.10-1.52.amzn1.src  
    python35-3.5.9-1.28.amzn1.src  
    python36-3.6.12-1.19.amzn1.src  
  
x86_64:  
    python34-tools-3.4.10-1.52.amzn1.x86_64  
    python34-test-3.4.10-1.52.amzn1.x86_64  
    python34-debuginfo-3.4.10-1.52.amzn1.x86_64  
    python34-devel-3.4.10-1.52.amzn1.x86_64  
    python34-libs-3.4.10-1.52.amzn1.x86_64  
    python34-3.4.10-1.52.amzn1.x86_64  
    python35-test-3.5.9-1.28.amzn1.x86_64  
    python35-libs-3.5.9-1.28.amzn1.x86_64  
    python35-3.5.9-1.28.amzn1.x86_64  
    python35-tools-3.5.9-1.28.amzn1.x86_64  
    python35-devel-3.5.9-1.28.amzn1.x86_64  
    python35-debuginfo-3.5.9-1.28.amzn1.x86_64  
    python36-test-3.6.12-1.19.amzn1.x86_64  
    python36-devel-3.6.12-1.19.amzn1.x86_64  
    python36-3.6.12-1.19.amzn1.x86_64  
    python36-debuginfo-3.6.12-1.19.amzn1.x86_64  
    python36-debug-3.6.12-1.19.amzn1.x86_64  
    python36-tools-3.6.12-1.19.amzn1.x86_64  
    python36-libs-3.6.12-1.19.amzn1.x86_64

Additional References

Red Hat: CVE-2019-20907, CVE-2020-14422

Mitre: CVE-2019-20907, CVE-2020-14422

OSVersionArchitecturePackageVersionFilename
Amazon Linux1i686python34-libs< 3.4.10-1.52.amzn1python34-libs-3.4.10-1.52.amzn1.i686.rpm
Amazon Linux1i686python34-tools< 3.4.10-1.52.amzn1python34-tools-3.4.10-1.52.amzn1.i686.rpm
Amazon Linux1i686python34< 3.4.10-1.52.amzn1python34-3.4.10-1.52.amzn1.i686.rpm
Amazon Linux1i686python34-devel< 3.4.10-1.52.amzn1python34-devel-3.4.10-1.52.amzn1.i686.rpm
Amazon Linux1i686python34-test< 3.4.10-1.52.amzn1python34-test-3.4.10-1.52.amzn1.i686.rpm
Amazon Linux1i686python34-debuginfo< 3.4.10-1.52.amzn1python34-debuginfo-3.4.10-1.52.amzn1.i686.rpm
Amazon Linux1i686python35-tools< 3.5.9-1.28.amzn1python35-tools-3.5.9-1.28.amzn1.i686.rpm
Amazon Linux1i686python35< 3.5.9-1.28.amzn1python35-3.5.9-1.28.amzn1.i686.rpm
Amazon Linux1i686python35-libs< 3.5.9-1.28.amzn1python35-libs-3.5.9-1.28.amzn1.i686.rpm
Amazon Linux1i686python35-debuginfo< 3.5.9-1.28.amzn1python35-debuginfo-3.5.9-1.28.amzn1.i686.rpm
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1-10 of 381

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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

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

0.011 Low

EPSS

Percentile

84.3%

JSON
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