CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.4 | $0-$5k | 0.00 |
A vulnerability was found in LibVNC (the affected version is unknown). It has been declared as critical. This vulnerability affects an unknown code of the component File Transfer Extension. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
LibVNC before commit 502821828ed00b4a2c4bef90683d0fd88ce495de contains heap out-of-bound write vulnerability in server code of file transfer extension that can result remote code execution
The bug was discovered 12/19/2018. The weakness was shared 12/19/2018 by Solar Designer (Website). The advisory is shared for download at ics-cert.kaspersky.com. This vulnerability was named CVE-2018-15127 since 08/06/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 119877 (Debian DLA-1617-1 : libvncserver security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171837 (SUSE Enterprise Linux Security Update for LibVNCServer (SUSE-SU-2019:0060-1)).
Applying the patch 502821828ed00b4a2c4bef90683d0fd88ce495de is able to eliminate this problem. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (119877).
Product
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / 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 |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 119877
Nessus Name: Debian DLA-1617-1 : libvncserver security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: 502821828ed00b4a2c4bef90683d0fd88ce495de
Timeline
08/06/2018 🔍12/19/2018 🔍
12/19/2018 🔍
12/19/2018 🔍
12/20/2018 🔍
12/26/2018 🔍
12/27/2018 🔍
01/31/2019 🔍
06/19/2023 🔍
Sources
Advisory: RHSA-2019:0059Researcher: Solar Designer
Status: Confirmed
CVE: CVE-2018-15127 (🔍)
SecurityFocus: 106825 - LibVNCServer Incomplete Fix Multiple Heap Buffer Overflow Vulnerabilities
Entry
Created: 12/20/2018 07:41Updated: 06/19/2023 20:13
Changes: 12/20/2018 07:41 (72), 04/21/2020 21:01 (5), 06/19/2023 20:13 (4)
Complete: 🔍
Cache ID: 18:E3E:103
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