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amazonAmazonALAS2-2023-1990
HistoryMar 17, 2023 - 4:34 p.m.

Medium: python3

2023-03-1716:34:00
alas.aws.amazon.com
14
python
urllib.parse
bypass
blocklisting
url
leading
characters
cve-2023-24329
update
advisory
amazon linux 2
red hat
mitre

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.6%

Issue Overview:

An issue in the urllib.parse component of Python before v3.11 allows attackers to bypass blocklisting methods by supplying a URL that starts with blank characters. (CVE-2023-24329)

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:  
    python3-3.7.16-1.amzn2.0.2.aarch64  
    python3-libs-3.7.16-1.amzn2.0.2.aarch64  
    python3-devel-3.7.16-1.amzn2.0.2.aarch64  
    python3-tools-3.7.16-1.amzn2.0.2.aarch64  
    python3-tkinter-3.7.16-1.amzn2.0.2.aarch64  
    python3-test-3.7.16-1.amzn2.0.2.aarch64  
    python3-debug-3.7.16-1.amzn2.0.2.aarch64  
    python3-debuginfo-3.7.16-1.amzn2.0.2.aarch64  
  
i686:  
    python3-3.7.16-1.amzn2.0.2.i686  
    python3-libs-3.7.16-1.amzn2.0.2.i686  
    python3-devel-3.7.16-1.amzn2.0.2.i686  
    python3-tools-3.7.16-1.amzn2.0.2.i686  
    python3-tkinter-3.7.16-1.amzn2.0.2.i686  
    python3-test-3.7.16-1.amzn2.0.2.i686  
    python3-debug-3.7.16-1.amzn2.0.2.i686  
    python3-debuginfo-3.7.16-1.amzn2.0.2.i686  
  
src:  
    python3-3.7.16-1.amzn2.0.2.src  
  
x86_64:  
    python3-3.7.16-1.amzn2.0.2.x86_64  
    python3-libs-3.7.16-1.amzn2.0.2.x86_64  
    python3-devel-3.7.16-1.amzn2.0.2.x86_64  
    python3-tools-3.7.16-1.amzn2.0.2.x86_64  
    python3-tkinter-3.7.16-1.amzn2.0.2.x86_64  
    python3-test-3.7.16-1.amzn2.0.2.x86_64  
    python3-debug-3.7.16-1.amzn2.0.2.x86_64  
    python3-debuginfo-3.7.16-1.amzn2.0.2.x86_64  

Additional References

Red Hat: CVE-2023-24329

Mitre: CVE-2023-24329

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.6%