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9.8
CRITICAL CVSS 3.0
CVE-2018-15127
LibVNC Heap Buffer Overflow Vulnerability
Description

LibVNC before commit 502821828ed00b4a2c4bef90683d0fd88ce495de contains heap out-of-bound write vulnerability in server code of file transfer extension that can result remote code execution

INFO

Published Date :

Dec. 19, 2018, 4:29 p.m.

Last Modified :

Nov. 21, 2024, 3:50 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2018-15127 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux_desktop
2 Redhat enterprise_linux_server
3 Redhat enterprise_linux_workstation
4 Redhat enterprise_linux_server_aus
5 Redhat enterprise_linux_server_eus
6 Redhat enterprise_linux_server_tus
1 Canonical ubuntu_linux
1 Debian debian_linux
1 Libvnc_project libvncserver
: Total Affected Vendor : 4 | Products : 9
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.0 CRITICAL [email protected]
Solution
This vulnerability can be mitigated by upgrading the libvncserver packages to the latest versions.
  • Update libvncserver packages to resolve the vulnerability.
  • For Debian, upgrade to version 0.9.11+dfsg-1.3~deb9u1 or later.
  • For SUSE, use YaST or zypper to apply the patch.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-15127.

URL Resource
https://access.redhat.com/errata/RHSA-2019:0059 Third Party Advisory
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://usn.ubuntu.com/3877-1/ Third Party Advisory
https://usn.ubuntu.com/4547-1/
https://usn.ubuntu.com/4587-1/
https://www.debian.org/security/2019/dsa-4383 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0059 Third Party Advisory
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://usn.ubuntu.com/3877-1/ Third Party Advisory
https://usn.ubuntu.com/4547-1/
https://usn.ubuntu.com/4587-1/
https://www.debian.org/security/2019/dsa-4383 Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-15127 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-15127 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-15127 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-15127 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:0059
    Added Reference https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/
    Added Reference https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
    Added Reference https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
    Added Reference https://usn.ubuntu.com/3877-1/
    Added Reference https://usn.ubuntu.com/4547-1/
    Added Reference https://usn.ubuntu.com/4587-1/
    Added Reference https://www.debian.org/security/2019/dsa-4383
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 23, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4587-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 30, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4547-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 31, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 26, 2019

    Action Type Old Value New Value
    Changed Reference Type https://usn.ubuntu.com/3877-1/ No Types Assigned https://usn.ubuntu.com/3877-1/ Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0059 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0059 Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2019/dsa-4383 No Types Assigned https://www.debian.org/security/2019/dsa-4383 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* OR *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:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 04, 2019

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2019/dsa-4383 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 01, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3877-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 16, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:0059 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 09, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html Mailing List, Third Party Advisory
    Changed Reference Type https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/ No Types Assigned https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/ Third Party Advisory
    Added CWE CWE-787
    Added CPE Configuration OR *cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:* versions up to (excluding) 0.9.12
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 27, 2018

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

15.62 }} 0.25%

score

0.94390

percentile