Vulnerability Details : CVE-2018-8788

FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory corruption and possibly even a remote code execution.

Vulnerability category: Memory CorruptionExecute code

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-2018-8788

Probability of exploitation activity in the next 30 days: 5.49%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 92 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-8788

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	[email protected]
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-8788

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.
Assigned by:
- [email protected] (Secondary)
- [email protected] (Primary)

References for CVE-2018-8788

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

Third Party Advisory;VDB Entry

CVEs referencing this url
https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659

Patch;Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0697

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

CVEs referencing this url
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-2018-8788

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