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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:162420
Version
2
Class
patch
ALTXid
370230
Language
Russian
Severity
High
Title
Astra Linux SE 1.6 (Smolensk) 20211008SE16 - обновление пакета tigervnc
Description
Исправление уязвимостей: CVE-2019-15691, CVE-2019-15692, CVE-2019-15693, CVE-2019-15694, CVE-2019-15695, CVE-2020-26117
Family
unix
Platform
Astra Linux SE 1.6
Product
tigervnc
Reference
CVE: CVE-2019-15691
CVE: CVE-2019-15691
Id:
CVE-2019-15691
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15691
Comment
: TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
CVSSv2 Score:
6.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSSv3 Score:
7.2
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE:
672 (Operation on a Resource after Expiration or Release)
References:
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 (MISC)
https://github.com/CendioOssman/tigervnc/commit/d61a767d6842b530ffb532ddd5a3d233119aad40 (MISC)
[oss-security] 20191220 VNC vulnerabilities. TigerVNC security update (MLIST)
openSUSE-SU-2020:0087 (SUSE)
CVE: CVE-2019-15692
CVE: CVE-2019-15692
Id:
CVE-2019-15692
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15692
Comment
: TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow. Vulnerability could be triggered from CopyRectDecoder due to incorrect value checks. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
CVSSv2 Score:
6.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSSv3 Score:
7.2
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 (MISC)
[oss-security] 20191220 VNC vulnerabilities. TigerVNC security update (MLIST)
https://github.com/CendioOssman/tigervnc/commit/996356b6c65ca165ee1ea46a571c32a1dc3c3821 (MISC)
openSUSE-SU-2020:0087 (SUSE)
CVE: CVE-2019-15693
CVE: CVE-2019-15693
Id:
CVE-2019-15693
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15693
Comment
: TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
CVSSv2 Score:
6.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSSv3 Score:
7.2
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 (MISC)
https://github.com/CendioOssman/tigervnc/commit/b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95 (MISC)
[oss-security] 20191220 VNC vulnerabilities. TigerVNC security update (MLIST)
openSUSE-SU-2020:0087 (SUSE)
CVE: CVE-2019-15694
CVE: CVE-2019-15694
Id:
CVE-2019-15694
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15694
Comment
: TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which could be triggered from DecodeManager::decodeRect. Vulnerability occurs due to the signdness error in processing MemOutStream. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
CVSSv2 Score:
6.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSSv3 Score:
7.2
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 (MISC)
[oss-security] 20191220 VNC vulnerabilities. TigerVNC security update (MLIST)
https://github.com/CendioOssman/tigervnc/commit/0943c006c7d900dfc0281639e992791d6c567438 (MISC)
openSUSE-SU-2020:0087 (SUSE)
CVE: CVE-2019-15695
CVE: CVE-2019-15695
Id:
CVE-2019-15695
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15695
Comment
: TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values, exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
CVSSv2 Score:
6.5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSSv3 Score:
7.2
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
HIGH
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 (MISC)
https://github.com/CendioOssman/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89 (MISC)
[oss-security] 20191220 VNC vulnerabilities. TigerVNC security update (MLIST)
openSUSE-SU-2020:0087 (SUSE)
CVE: CVE-2020-26117
CVE: CVE-2020-26117
Id:
CVE-2020-26117
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26117
Comment
: In rfb/CSecurityTLS.cxx and rfb/CSecurityTLS.java in TigerVNC before 1.11.0, viewers mishandle TLS certificate exceptions. They store the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception.
CVSSv2 Score:
5.8
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
NONE
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:N
CVSSv3 Score:
8.1
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE:
295 (Certificate Issues)
References:
https://github.com/TigerVNC/tigervnc/commit/20dea801e747318525a5859fe4f37c52b05310cb (MISC)
https://github.com/TigerVNC/tigervnc/commit/b30f10c681ec87720cff85d490f67098568a9cba (MISC)
https://github.com/TigerVNC/tigervnc/releases/tag/v1.11.0 (MISC)
https://github.com/TigerVNC/tigervnc/commit/f029745f63ac7d22fb91639b2cb5b3ab56134d6e (MISC)
https://bugzilla.opensuse.org/show_bug.cgi?id=1176733 (MISC)
https://github.com/TigerVNC/tigervnc/commit/7399eab79a4365434d26494fa1628ce1eb91562b (MISC)
[debian-lts-announce] 20201006 [SECURITY] [DLA 2396-1] tigervnc security update (MLIST)
openSUSE-SU-2020:1666 (SUSE)
openSUSE-SU-2020:1841 (SUSE)
VENDOR: 20211008SE16
VENDOR: 20211008SE16
Id:
20211008SE16
Reference:
https://wiki.astralinux.ru/pages/viewpage.action?pageId=149064862
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