CVE-2018-20748

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2018-20748
LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7 Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/issues/273 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3877-1/ Third Party Advisory
https://usn.ubuntu.com/4547-1/ Third Party Advisory
https://usn.ubuntu.com/4587-1/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2018/12/10/8 Exploit Mailing List Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7 Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/issues/273 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3877-1/ Third Party Advisory
https://usn.ubuntu.com/4547-1/ Third Party Advisory
https://usn.ubuntu.com/4587-1/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2018/12/10/8 Exploit Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

Configuration 4 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:siemens:simatic_itc1500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1500:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1500_pro:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:siemens:simatic_itc1900_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1900:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1900_pro:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:siemens:simatic_itc2200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc2200:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc2200_pro:-:*:*:*:*:*:*:*
History

21 Nov 2024, 04:02

Type Values Removed Values Added
References () https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf - Patch, Third Party Advisory () https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf - Patch, Third Party Advisory
References () https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae - Patch, Third Party Advisory () https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae - Patch, Third Party Advisory
References () https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7 - Patch, Third Party Advisory () https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7 - Patch, Third Party Advisory
References () https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a - Patch, Third Party Advisory () https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a - Patch, Third Party Advisory
References () https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c - Patch, Third Party Advisory () https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c - Patch, Third Party Advisory
References () https://github.com/LibVNC/libvncserver/issues/273 - Issue Tracking, Third Party Advisory () https://github.com/LibVNC/libvncserver/issues/273 - Issue Tracking, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html - Mailing List, Third Party Advisory
References () https://usn.ubuntu.com/3877-1/ - Third Party Advisory () https://usn.ubuntu.com/3877-1/ - Third Party Advisory
References () https://usn.ubuntu.com/4547-1/ - Third Party Advisory () https://usn.ubuntu.com/4547-1/ - Third Party Advisory
References () https://usn.ubuntu.com/4587-1/ - Third Party Advisory () https://usn.ubuntu.com/4587-1/ - Third Party Advisory
References () https://www.openwall.com/lists/oss-security/2018/12/10/8 - Exploit, Mailing List, Third Party Advisory () https://www.openwall.com/lists/oss-security/2018/12/10/8 - Exploit, Mailing List, Third Party Advisory
Information

Published : 2019-01-30 18:29

Updated : 2024-11-21 04:02

NVD link : CVE-2018-20748

Mitre link : CVE-2018-20748

CVE.ORG link : CVE-2018-20748

JSON object : View

Products Affected

siemens

  • simatic_itc1900
  • simatic_itc2200_firmware
  • simatic_itc1500_pro
  • simatic_itc1900_pro_firmware
  • simatic_itc1500
  • simatic_itc2200_pro
  • simatic_itc1900_firmware
  • simatic_itc1500_firmware
  • simatic_itc1500_pro_firmware
  • simatic_itc1900_pro
  • simatic_itc2200
  • simatic_itc2200_pro_firmware

libvnc_project

  • libvncserver

canonical

  • ubuntu_linux

debian

  • debian_linux
CWE
CWE-787

Out-of-bounds Write


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