Vulnerability Details : CVE-2018-8784
FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory corruption and probably even a remote code execution.
Published
2018-11-29 18:29:01
Updated
2020-09-29 19:12:51
Vulnerability category: OverflowMemory CorruptionExecute code
Products affected by CVE-2018-8784
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:freerdp:freerdp:2.0.0:rc3:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-8784
3.57%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-8784
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-8784
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: cve@checkpoint.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-8784
-
http://www.securityfocus.com/bid/106938
RDP Client 'FreeRDP' And 'rdesktop' Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
https://github.com/FreeRDP/FreeRDP/commit/17c363a5162fd4dc77b1df54e48d7bd9bf6b3be7
Fixed CVE-2018-8784 · FreeRDP/FreeRDP@17c363a · GitHubPatch;Vendor Advisory
-
https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
Reverse RDP Attack: Code Execution on RDP Clients - Check Point ResearchExploit;Third Party Advisory
-
https://usn.ubuntu.com/3845-1/
USN-3845-1: FreeRDP vulnerabilities | Ubuntu security noticesThird Party Advisory
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