Vulnerability Details : CVE-2018-8787
FreeRDP prior to version 2.0.0-rc4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function gdi_Bitmap_Decompress() and results in a memory corruption and probably even a remote code execution.
Published
2018-11-29 18:29:01
Updated
2020-09-29 02:01:56
Vulnerability category: OverflowMemory CorruptionExecute code
Products affected by CVE-2018-8787
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*
- 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-2018-8787
6.80%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-8787
| 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-2018-8787
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
-
The product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, 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-2018-8787
-
http://www.securityfocus.com/bid/106938
RDP Client 'FreeRDP' And 'rdesktop' Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
https://access.redhat.com/errata/RHSA-2019:0697
RHSA-2019:0697 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://github.com/FreeRDP/FreeRDP/commit/09b9d4f1994a674c4ec85b4947aa656eda1aed8a
Fixed CVE-2018-8787 · FreeRDP/FreeRDP@09b9d4f · GitHubPatch;Vendor Advisory
-
https://usn.ubuntu.com/3845-2/
USN-3845-2: FreeRDP vulnerabilities | Ubuntu security noticesThird Party 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
-
https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html
[SECURITY] [DLA 1666-1] freerdp security updateMailing List;Third Party Advisory
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