National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2018-6307 Detail

Current Description

LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.

Source:  MITRE
Description Last Modified:  12/19/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.1 HIGH
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 2.2

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6

Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/LibVNC/libvncserver/issues/241 Third Party Advisory
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3877-1/
https://www.debian.org/security/2019/dsa-4383

Technical Details

Vulnerability Type (View All)

Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-6307
NVD Published Date:
12/19/2018
NVD Last Modified:
02/04/2019