CVE-2018-20748 - LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbp

CVE-2018-20748

Summary

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.

References

Vulnerable Configurations

cpe:2.3:a:libvnc_project:libvncserver:0.9.12:*:*:*:*:*:*:*
cpe:2.3:a:libvnc_project:libvncserver:0.9.12:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:siemens:simatic_itc1500_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc1500_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1500:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1500:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1500_pro:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1500_pro:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc1900_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc1900_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1900:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1900:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1900_pro:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc1900_pro:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc2200_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc2200_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc2200:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc2200:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:3.0.0.0:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc2200_pro:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_itc2200_pro:-:*:*:*:*:*:*:*

CVSS

Base:	7.5 (as of 09-03-2022 - 21:54)
Impact:
Exploitability:

CWE

CWE-787

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	LOW	NONE

Impact

Confidentiality	Integrity	Availability
PARTIAL	PARTIAL	PARTIAL

cvss-vector via4

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

refmap via4

misc	https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7 https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c https://github.com/LibVNC/libvncserver/issues/273 https://www.openwall.com/lists/oss-security/2018/12/10/8
mlist	[debian-lts-announce] 20190131 [SECURITY] [DLA 1652-1] libvncserver security update [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update
ubuntu	USN-3877-1 USN-4547-1 USN-4587-1

Last major update

09-03-2022 - 21:54

Published

30-01-2019 - 18:29

Last modified

09-03-2022 - 21:54