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ubuntuUbuntuUSN-4636-1
HistoryNov 17, 2020 - 12:00 a.m.

LibVNCServer, Vino vulnerability

2020-11-1700:00:00
ubuntu.com
34

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.8 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

58.7%

JSON

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • libvncserver - vnc server library
  • vino - VNC server for GNOME

Details

It was discovered that LibVNCServer incorrectly handled certain internals.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Vino package ships with a LibVNCServer source and all listed releases were
affected for this package.

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchvino< 3.22.0-6ubuntu2.1UNKNOWN
Ubuntu20.10noarchvino-dbgsym< 3.22.0-6ubuntu2.1UNKNOWN
Ubuntu20.04noarchlibvncclient1< 0.9.12+dfsg-9ubuntu0.3UNKNOWN
Ubuntu20.04noarchlibvncclient1-dbgsym< 0.9.12+dfsg-9ubuntu0.3UNKNOWN
Ubuntu20.04noarchlibvncserver-dev< 0.9.12+dfsg-9ubuntu0.3UNKNOWN
Ubuntu20.04noarchlibvncserver1< 0.9.12+dfsg-9ubuntu0.3UNKNOWN
Ubuntu20.04noarchlibvncserver1-dbgsym< 0.9.12+dfsg-9ubuntu0.3UNKNOWN
Ubuntu20.04noarchvino< 3.22.0-5ubuntu2.2UNKNOWN
Ubuntu20.04noarchvino-dbgsym< 3.22.0-5ubuntu2.2UNKNOWN
Ubuntu18.04noarchlibvncclient1< 0.9.11+dfsg-1ubuntu1.4UNKNOWN
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Related

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SUSE SLED15 / SLES15 Security Update : LibVNCServer (SUSE-SU-2020:3515-1)
2020-12-09 00:00:00
EulerOS 2.0 SP5 : libvncserver (EulerOS-SA-2021-1688)
2021-03-24 00:00:00
openSUSE Security Update : LibVNCServer (openSUSE-2020-2097)
2020-11-30 00:00:00
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Huawei EulerOS: Security Advisory for libvncserver (EulerOS-SA-2021-1688)
2021-03-24 00:00:00
SUSE: Security Advisory (SUSE-SU-2020:3550-1)
2021-04-19 00:00:00
SUSE: Security Advisory (SUSE-SU-2020:14549-1)
2021-06-09 00:00:00
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CVE-2020-25708
2020-11-27 18:15:11
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2020-11-15 00:00:00
libvncserver, vino vulnerability
2020-11-17 17:31:54
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Security update for LibVNCServer (important)
2020-11-29 00:00:00
Security update for LibVNCServer (important)
2020-11-26 00:00:00
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[SECURITY] [DLA 2451-1] libvncserver security update
2020-11-15 21:26:03
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2022-09-29 22:14:33
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2020-11-11 12:52:57
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Denial Of Service (DoS)
2020-11-20 10:15:41
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CVE-2020-25708
2020-11-27 18:15:00
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Updated vino package fixes a security vulnerability
2020-11-23 22:51:37
almalinux
almalinux
Moderate: libvncserver security update
2021-05-18 06:09:01
oraclelinux
oraclelinux
libvncserver security update
2021-05-25 00:00:00
rocky
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libvncserver security update
2021-05-18 06:09:01
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(RHSA-2021:1811) Moderate: libvncserver security update
2021-05-18 06:09:01

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.8 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

58.7%

JSON
Related for USN-4636-1
nessus18openvas11osv6debiancve1suse2prion1ubuntucve1cve1debian2redhatcve1veracode1alpinelinux1mageia1almalinux1oraclelinux1rocky1redhat1