Lucene search

K
amazonAmazonALAS-2019-1258
HistoryAug 07, 2019 - 11:02 p.m.

Important: python27

2019-08-0723:02:00
alas.aws.amazon.com
77

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.007 Low

EPSS

Percentile

80.4%

Issue Overview:

A security regression of CVE-2019-9636 was discovered in python, since commit d537ab0ff9767ef024f26246899728f0116b1ec3, which still allows an attacker to exploit CVE-2019-9636 by abusing the user and password parts of a URL. When an application parses user-supplied URLs to store cookies, authentication credentials, or other kind of information, it is possible for an attacker to provide specially crafted URLs to make the application locate host-related information (e.g. cookies, authentication data) and send them to a different host than where it should, unlike if the URLs had been correctly parsed. The result of an attack may vary based on the application.(CVE-2019-10160)

urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mechanisms that blacklist file: URIs, as demonstrated by triggering a urllib.urlopen(‘local_file:///etc/passwd’) call.(CVE-2019-9948)

Affected Packages:

python27

Issue Correction:
Run yum update python27 to update your system.

New Packages:

i686:  
    python27-2.7.16-1.129.amzn1.i686  
    python27-devel-2.7.16-1.129.amzn1.i686  
    python27-debuginfo-2.7.16-1.129.amzn1.i686  
    python27-tools-2.7.16-1.129.amzn1.i686  
    python27-libs-2.7.16-1.129.amzn1.i686  
    python27-test-2.7.16-1.129.amzn1.i686  
  
src:  
    python27-2.7.16-1.129.amzn1.src  
  
x86_64:  
    python27-2.7.16-1.129.amzn1.x86_64  
    python27-libs-2.7.16-1.129.amzn1.x86_64  
    python27-test-2.7.16-1.129.amzn1.x86_64  
    python27-devel-2.7.16-1.129.amzn1.x86_64  
    python27-tools-2.7.16-1.129.amzn1.x86_64  
    python27-debuginfo-2.7.16-1.129.amzn1.x86_64  

Additional References

Red Hat: CVE-2019-10160, CVE-2019-9948

Mitre: CVE-2019-10160, CVE-2019-9948

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.007 Low

EPSS

Percentile

80.4%