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amazonAmazonALAS2-2019-1161
HistoryFeb 13, 2019 - 6:38 p.m.

Important: libvncserver

2019-02-1318:38:00
alas.aws.amazon.com
26

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

AI Score

9.9

Confidence

High

EPSS

0.724

Percentile

98.1%

JSON

Issue Overview:

LibVNC contains heap out-of-bound write vulnerability in server code of file transfer extension that can result remote code execution (CVE-2018-15127)

Affected Packages:

libvncserver

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

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

New Packages:

aarch64:  
    libvncserver-0.9.9-13.amzn2.aarch64  
    libvncserver-devel-0.9.9-13.amzn2.aarch64  
    libvncserver-debuginfo-0.9.9-13.amzn2.aarch64  
  
i686:  
    libvncserver-0.9.9-13.amzn2.i686  
    libvncserver-devel-0.9.9-13.amzn2.i686  
    libvncserver-debuginfo-0.9.9-13.amzn2.i686  
  
src:  
    libvncserver-0.9.9-13.amzn2.src  
  
x86_64:  
    libvncserver-0.9.9-13.amzn2.x86_64  
    libvncserver-devel-0.9.9-13.amzn2.x86_64  
    libvncserver-debuginfo-0.9.9-13.amzn2.x86_64

Additional References

Red Hat: CVE-2018-15127

Mitre: CVE-2018-15127

OSVersionArchitecturePackageVersionFilename
Amazon Linux2aarch64libvncserver< 0.9.9-13.amzn2libvncserver-0.9.9-13.amzn2.aarch64.rpm
Amazon Linux2aarch64libvncserver-devel< 0.9.9-13.amzn2libvncserver-devel-0.9.9-13.amzn2.aarch64.rpm
Amazon Linux2aarch64libvncserver-debuginfo< 0.9.9-13.amzn2libvncserver-debuginfo-0.9.9-13.amzn2.aarch64.rpm
Amazon Linux2i686libvncserver< 0.9.9-13.amzn2libvncserver-0.9.9-13.amzn2.i686.rpm
Amazon Linux2i686libvncserver-devel< 0.9.9-13.amzn2libvncserver-devel-0.9.9-13.amzn2.i686.rpm
Amazon Linux2i686libvncserver-debuginfo< 0.9.9-13.amzn2libvncserver-debuginfo-0.9.9-13.amzn2.i686.rpm
Amazon Linux2x86_64libvncserver< 0.9.9-13.amzn2libvncserver-0.9.9-13.amzn2.x86_64.rpm
Amazon Linux2x86_64libvncserver-devel< 0.9.9-13.amzn2libvncserver-devel-0.9.9-13.amzn2.x86_64.rpm
Amazon Linux2x86_64libvncserver-debuginfo< 0.9.9-13.amzn2libvncserver-debuginfo-0.9.9-13.amzn2.x86_64.rpm

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

AI Score

9.9

Confidence

High

EPSS

0.724

Percentile

98.1%

JSON
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