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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:94443
[Rus]
Version
5
Class
patch
ALTXid
270456
Language
English
Severity
Critical
Title
DSA-4383-1 -- libvncserver -- security update
Description
Pavel Cheremushkin discovered several vulnerabilities in libvncserver, a library to implement VNC server/client functionalities,
which might result in the execution of arbitrary code, denial of service or information disclosure.
Family
unix
Platform
Debian 9
Product
libvncserver
Reference
VENDOR: DSA-4383-1
VENDOR: DSA-4383-1
Id:
DSA-4383-1
Reference:
https://www.debian.org/security/dsa-4383
CVE: CVE-2018-6307
CVE: CVE-2018-6307
Id:
CVE-2018-6307
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6307
Comment
: LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.
CVSSv2 Score:
6.8
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSSv3 Score:
8.1
Attack vector:
NETWORK
Attack complexity:
HIGH
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:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/ (MISC)
[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update (MLIST)
https://github.com/LibVNC/libvncserver/issues/241 (MISC)
USN-3877-1 (UBUNTU)
DSA-4383 (DEBIAN)
[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (MLIST)
CVE: CVE-2018-15126
CVE: CVE-2018-15126
Id:
CVE-2018-15126
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15126
Comment
: LibVNC before commit 73cb96fec028a576a5a24417b57723b55854ad7b contains heap use-after-free vulnerability in server code of file transfer extension 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:
416 (Use After Free)
References:
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-027-libvnc-heap-use-after-free/ (MISC)
USN-3877-1 (UBUNTU)
[debian-lts-announce] 20190131 [SECURITY] [DLA 1652-1] libvncserver security update (MLIST)
DSA-4383 (DEBIAN)
[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (MLIST)
CVE: CVE-2018-15127
CVE: CVE-2018-15127
Id:
CVE-2018-15127
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15127
Comment
: LibVNC before commit 502821828ed00b4a2c4bef90683d0fd88ce495de contains heap out-of-bound write vulnerability in server code of file transfer extension 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-18-028-libvnc-heap-out-of-bound-write/ (MISC)
[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update (MLIST)
RHSA-2019:0059 (REDHAT)
USN-3877-1 (UBUNTU)
DSA-4383 (DEBIAN)
[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (MLIST)
USN-4547-1 (UBUNTU)
USN-4587-1 (UBUNTU)
CVE: CVE-2018-20019
CVE: CVE-2018-20019
Id:
CVE-2018-20019
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20019
Comment
: LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple heap out-of-bound write vulnerabilities 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:3.1/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-18-029-libvnc-multiple-heap-out-of-bound-vulnerabilities/ (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)
USN-4547-1 (UBUNTU)
USN-4587-1 (UBUNTU)
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf (CONFIRM)
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-2018-20023
CVE: CVE-2018-20023
Id:
CVE-2018-20023
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20023
Comment
: LibVNC before 8b06f835e259652b0ff026898014fc7297ade858 contains CWE-665: Improper Initialization vulnerability in VNC Repeater 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-18-033-libvnc-memory-leak/ (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)
USN-4547-1 (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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