CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.1 | $0-$5k | 0.00 |
A vulnerability was found in FreeRDP up to 2.0.0-rc3. It has been classified as critical. This affects the function zgfx_decompress
. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress() that results in a memory corruption and probably even a remote code execution.
The bug was discovered 10/22/2018. The weakness was shared 11/29/2018 (GitHub Repository). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2018-8785 since 03/19/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.
The vulnerability was handled as a non-public zero-day exploit for at least 38 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 119655 (Ubuntu 14.04 LTS : freerdp, freerdp2 vulnerabilities (USN-3845-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197329 (Ubuntu Security Notification for FreeRDP Vulnerabilities (USN-3845-1)).
Upgrading to version 2.0.0-rc4 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (119655). The entries 127328, 127330, 127331 and 127332 are related to this item.
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.1
VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 119655
Nessus Name: Ubuntu 14.04 LTS : freerdp, freerdp2 vulnerabilities (USN-3845-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: FreeRDP 2.0.0-rc4
Patch: github.com
Timeline
03/19/2018 🔍10/22/2018 🔍
11/29/2018 🔍
11/29/2018 🔍
11/30/2018 🔍
12/12/2018 🔍
12/13/2018 🔍
02/05/2019 🔍
06/12/2023 🔍
Sources
Advisory: 602f4a2e14b41703b5f431de3154cd46a5750a2dStatus: Not defined
Confirmation: 🔍
CVE: CVE-2018-8785 (🔍)
SecurityFocus: 106938 - RDP Client 'FreeRDP' And 'rdesktop' Multiple Security Vulnerabilities
See also: 🔍
Entry
Created: 11/30/2018 07:54Updated: 06/12/2023 10:30
Changes: 11/30/2018 07:54 (74), 04/16/2020 11:23 (5), 06/12/2023 10:24 (5), 06/12/2023 10:30 (1)
Complete: 🔍
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