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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:122332
[Rus]
Version
2
Class
patch
ALTXid
309996
Language
English
Severity
Critical
Title
DLA-2016-1 -- ssvnc security update
Description
Several vulnerabilities have been identified in the VNC code of ssvnc, an encryption-capable VNC client.
Family
unix
Platform
Debian 8
Product
ssvnc
Reference
VENDOR: DLA-2016-1
VENDOR: DLA-2016-1
Id:
DLA-2016-1
Reference:
https://lists.debian.org/debian-lts-announce/2019/debian-lts-announce-201911/msg00033.html
CVE: CVE-2018-20020
CVE: CVE-2018-20020
Id:
CVE-2018-20020
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20020
Comment
: LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
CVSSv2 Score:
7.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
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
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/ (MISC)
[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update (MLIST)
USN-3877-1 (UBUNTU)
DSA-4383 (DEBIAN)
GLSA-201908-05 (GENTOO)
[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (MLIST)
[debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update (MLIST)
GLSA-202006-06 (GENTOO)
USN-4547-1 (UBUNTU)
USN-4547-2 (UBUNTU)
USN-4587-1 (UBUNTU)
CVE: CVE-2018-20021
CVE: CVE-2018-20021
Id:
CVE-2018-20021
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20021
Comment
: LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM
CVSSv2 Score:
7.8
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
835 (Loop with Unreachable Exit Condition ('Infinite Loop'))
References:
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/ (MISC)
[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update (MLIST)
USN-3877-1 (UBUNTU)
DSA-4383 (DEBIAN)
GLSA-201908-05 (GENTOO)
[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (MLIST)
[debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update (MLIST)
[debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update (MLIST)
GLSA-202006-06 (GENTOO)
USN-4547-1 (UBUNTU)
USN-4547-2 (UBUNTU)
USN-4587-1 (UBUNTU)
CVE: CVE-2018-20022
CVE: CVE-2018-20022
Id:
CVE-2018-20022
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20022
Comment
: LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
NONE
Availability impact:
NONE
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE:
665 (Improper Initialization)
References:
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-032-libvnc-multiple-memory-leaks/ (MISC)
[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update (MLIST)
USN-3877-1 (UBUNTU)
DSA-4383 (DEBIAN)
GLSA-201908-05 (GENTOO)
[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (MLIST)
[debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update (MLIST)
[debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update (MLIST)
GLSA-202006-06 (GENTOO)
USN-4547-1 (UBUNTU)
USN-4547-2 (UBUNTU)
USN-4587-1 (UBUNTU)
CVE: CVE-2018-20024
CVE: CVE-2018-20024
Id:
CVE-2018-20024
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20024
Comment
: LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/ (MISC)
[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update (MLIST)
USN-3877-1 (UBUNTU)
DSA-4383 (DEBIAN)
GLSA-201908-05 (GENTOO)
[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (MLIST)
[debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update (MLIST)
GLSA-202006-06 (GENTOO)
USN-4547-1 (UBUNTU)
USN-4547-2 (UBUNTU)
USN-4587-1 (UBUNTU)
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