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amazonAmazonALAS-2020-1340
HistoryFeb 04, 2020 - 10:44 p.m.

Medium: python-pip

2020-02-0422:44:00
alas.aws.amazon.com
109
python-pip
urllib3 library
security
vulnerabilities
crlf injection
ssl connections

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.6

Confidence

High

EPSS

0.005

Percentile

76.3%

Issue Overview:

In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the request parameter. (CVE-2019-11236)

The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates, which results in SSL connections succeeding in situations where a verification failure is the correct outcome. This is related to use of the ssl_context, ca_certs, or ca_certs_dir argument. (CVE-2019-11324)

Affected Packages:

python-pip

Issue Correction:
Run yum update python-pip to update your system.

New Packages:

noarch:  
    python27-pip-9.0.3-1.27.amzn1.noarch  
    python35-pip-9.0.3-1.27.amzn1.noarch  
    python26-pip-9.0.3-1.27.amzn1.noarch  
    python36-pip-9.0.3-1.27.amzn1.noarch  
    python34-pip-9.0.3-1.27.amzn1.noarch  
  
src:  
    python-pip-9.0.3-1.27.amzn1.src  

Additional References

Red Hat: CVE-2019-11236, CVE-2019-11324

Mitre: CVE-2019-11236, CVE-2019-11324

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.6

Confidence

High

EPSS

0.005

Percentile

76.3%