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amazonAmazonALAS-2018-1137
HistoryDec 20, 2018 - 12:04 a.m.

Important: ghostscript

2018-12-2000:04:00
alas.aws.amazon.com
109

9.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.973 High

EPSS

Percentile

99.9%

Issue Overview:

It was discovered that the ghostscript /invalidaccess checks fail under certain conditions. An attacker could possibly exploit this to bypass the -dSAFER protection and, for example, execute arbitrary shell commands via a specially crafted PostScript document.(CVE-2018-16509)

Affected Packages:

ghostscript

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

New Packages:

i686:  
    ghostscript-doc-8.70-24.26.amzn1.i686  
    ghostscript-8.70-24.26.amzn1.i686  
    ghostscript-debuginfo-8.70-24.26.amzn1.i686  
    ghostscript-devel-8.70-24.26.amzn1.i686  
  
src:  
    ghostscript-8.70-24.26.amzn1.src  
  
x86_64:  
    ghostscript-debuginfo-8.70-24.26.amzn1.x86_64  
    ghostscript-doc-8.70-24.26.amzn1.x86_64  
    ghostscript-8.70-24.26.amzn1.x86_64  
    ghostscript-devel-8.70-24.26.amzn1.x86_64  

Additional References

Red Hat: CVE-2018-16509

Mitre: CVE-2018-16509

9.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.973 High

EPSS

Percentile

99.9%