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amazonAmazonALAS-2013-188
HistoryMay 13, 2013 - 10:28 a.m.

Medium: libxml2

2013-05-1310:28:00
alas.aws.amazon.com
13

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.013 Low

EPSS

Percentile

85.6%

Issue Overview:

libxml2 2.9.0 and earlier allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, aka “internal entity expansion” with linear complexity.

Affected Packages:

libxml2

Issue Correction:
Run yum update libxml2 to update your system.

New Packages:

i686:  
    libxml2-debuginfo-2.7.8-10.26.amzn1.i686  
    libxml2-static-2.7.8-10.26.amzn1.i686  
    libxml2-devel-2.7.8-10.26.amzn1.i686  
    libxml2-2.7.8-10.26.amzn1.i686  
    libxml2-python-2.7.8-10.26.amzn1.i686  
  
src:  
    libxml2-2.7.8-10.26.amzn1.src  
  
x86_64:  
    libxml2-static-2.7.8-10.26.amzn1.x86_64  
    libxml2-2.7.8-10.26.amzn1.x86_64  
    libxml2-devel-2.7.8-10.26.amzn1.x86_64  
    libxml2-debuginfo-2.7.8-10.26.amzn1.x86_64  
    libxml2-python-2.7.8-10.26.amzn1.x86_64  

Additional References

Red Hat: CVE-2013-0338

Mitre: CVE-2013-0338

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.013 Low

EPSS

Percentile

85.6%