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amazonAmazonALAS-2019-1241
HistoryJul 17, 2019 - 11:37 p.m.

Medium: libxslt

2019-07-1723:37:00
alas.aws.amazon.com
113

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

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

EPSS

0.003

Percentile

65.5%

Issue Overview:

libxslt allows bypass of a protection mechanism because callers of xsltCheckRead and xsltCheckWrite permit access even upon receiving a -1 error code. xsltCheckRead can return -1 for a crafted URL that is not actually invalid and is subsequently loaded. (CVE-2019-11068)

Affected Packages:

libxslt

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

New Packages:

i686:  
    libxslt-devel-1.1.28-5.13.amzn1.i686  
    libxslt-python27-1.1.28-5.13.amzn1.i686  
    libxslt-python26-1.1.28-5.13.amzn1.i686  
    libxslt-1.1.28-5.13.amzn1.i686  
    libxslt-debuginfo-1.1.28-5.13.amzn1.i686  
  
src:  
    libxslt-1.1.28-5.13.amzn1.src  
  
x86_64:  
    libxslt-debuginfo-1.1.28-5.13.amzn1.x86_64  
    libxslt-python26-1.1.28-5.13.amzn1.x86_64  
    libxslt-1.1.28-5.13.amzn1.x86_64  
    libxslt-python27-1.1.28-5.13.amzn1.x86_64  
    libxslt-devel-1.1.28-5.13.amzn1.x86_64  

Additional References

Red Hat: CVE-2019-11068

Mitre: CVE-2019-11068

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

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

EPSS

0.003

Percentile

65.5%