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amazonAmazonALAS-2017-890
HistorySep 13, 2017 - 10:22 p.m.

Medium: xmlsec1

2017-09-1322:22:00
alas.aws.amazon.com
12

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

66.1%

Issue Overview:

It was discovered xmlsec1’s use of libxml2 inadvertently enabled external entity expansion (XXE) along with validation. An attacker could craft an XML file that would cause xmlsec1 to try and read local files or HTTP/FTP URLs, leading to information disclosure or denial of service. (CVE-2017-1000061)

Affected Packages:

xmlsec1

Issue Correction:
Run yum update xmlsec1 to update your system.

New Packages:

i686:  
    xmlsec1-openssl-1.2.20-7.4.amzn1.i686  
    xmlsec1-gnutls-1.2.20-7.4.amzn1.i686  
    xmlsec1-debuginfo-1.2.20-7.4.amzn1.i686  
    xmlsec1-nss-1.2.20-7.4.amzn1.i686  
    xmlsec1-1.2.20-7.4.amzn1.i686  
    xmlsec1-gcrypt-1.2.20-7.4.amzn1.i686  
    xmlsec1-openssl-devel-1.2.20-7.4.amzn1.i686  
    xmlsec1-gcrypt-devel-1.2.20-7.4.amzn1.i686  
    xmlsec1-devel-1.2.20-7.4.amzn1.i686  
    xmlsec1-nss-devel-1.2.20-7.4.amzn1.i686  
    xmlsec1-gnutls-devel-1.2.20-7.4.amzn1.i686  
  
src:  
    xmlsec1-1.2.20-7.4.amzn1.src  
  
x86_64:  
    xmlsec1-openssl-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-openssl-devel-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-nss-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-gcrypt-devel-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-devel-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-gnutls-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-nss-devel-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-debuginfo-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-gnutls-devel-1.2.20-7.4.amzn1.x86_64  
    xmlsec1-gcrypt-1.2.20-7.4.amzn1.x86_64  

Additional References

Red Hat: CVE-2017-1000061

Mitre: CVE-2017-1000061

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

66.1%