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amazonAmazonALAS-2013-220
HistorySep 04, 2013 - 1:31 p.m.

Medium: python27

2013-09-0413:31:00
alas.aws.amazon.com
10

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

64.8%

Issue Overview:

The ssl.match_hostname function in the SSL module in Python 2.6 through 3.4 does not properly handle a ‘\0’ character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Affected Packages:

python27

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

New Packages:

i686:  
    python27-2.7.5-4.28.amzn1.i686  
    python27-devel-2.7.5-4.28.amzn1.i686  
    python27-test-2.7.5-4.28.amzn1.i686  
    python27-tools-2.7.5-4.28.amzn1.i686  
    python27-debuginfo-2.7.5-4.28.amzn1.i686  
    python27-libs-2.7.5-4.28.amzn1.i686  
  
src:  
    python27-2.7.5-4.28.amzn1.src  
  
x86_64:  
    python27-test-2.7.5-4.28.amzn1.x86_64  
    python27-debuginfo-2.7.5-4.28.amzn1.x86_64  
    python27-libs-2.7.5-4.28.amzn1.x86_64  
    python27-tools-2.7.5-4.28.amzn1.x86_64  
    python27-devel-2.7.5-4.28.amzn1.x86_64  
    python27-2.7.5-4.28.amzn1.x86_64  

Additional References

Red Hat: CVE-2013-4238

Mitre: CVE-2013-4238

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

64.8%