Vulnerability Details : CVE-2018-8789

FreeRDP prior to version 2.0.0-rc4 contains several Out-Of-Bounds Reads in the NTLM Authentication module that results in a Denial of Service (segfault).

Vulnerability category: Denial of service

Published 2018-11-29 18:29:01

Updated 2019-06-03 16:29:01

Source Check Point Software Technologies Ltd.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2018-8789

Probability of exploitation activity in the next 30 days: 1.03%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 82 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-8789

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	[email protected]
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2018-8789

CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

Assigned by: [email protected] (Primary)
CWE-126 Buffer Over-read

The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.

Assigned by: [email protected] (Secondary)

References for CVE-2018-8789

http://www.securityfocus.com/bid/106938

Third Party Advisory;VDB Entry

CVEs referencing this url
https://usn.ubuntu.com/3845-2/

CVEs referencing this url
https://github.com/FreeRDP/FreeRDP/commit/2ee663f39dc8dac3d9988e847db19b2d7e3ac8c6

Patch;Vendor Advisory
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/

Exploit;Third Party Advisory

CVEs referencing this url
https://usn.ubuntu.com/3845-1/

Third Party Advisory

CVEs referencing this url
https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html

Mailing List;Third Party Advisory

CVEs referencing this url

Products affected by CVE-2018-8789

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 14.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 16.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 18.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 18.10
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Matching versions
Freerdp » Freerdp
Versions up to, including, (<=) 1.2.0
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Matching versions
Freerdp » Freerdp » Version: 2.0.0 Update RC1
cpe:2.3:a:freerdp:freerdp:2.0.0:rc1:*:*:*:*:*:*
Matching versions
Freerdp » Freerdp » Version: 2.0.0 Update RC2
cpe:2.3:a:freerdp:freerdp:2.0.0:rc2:*:*:*:*:*:*
Matching versions
Freerdp » Freerdp » Version: 2.0.0 Update RC3
cpe:2.3:a:freerdp:freerdp:2.0.0:rc3:*:*:*:*:*:*
Matching versions