6.5
MEDIUM
CVE-2018-6942
FreeType Font NULL Pointer Dereference Denial of Service Vulnerability
Description

An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.

INFO

Published Date :

Feb. 13, 2018, 5:29 a.m.

Last Modified :

Nov. 21, 2024, 4:11 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2018-6942 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2018-6942 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 Canonical ubuntu_linux
1 Freetype freetype

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).

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 1 year, 11 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1276 different CVEs too.

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

The following list is the news that have been mention CVE-2018-6942 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-6942 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 http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00054.html
    Added Reference https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5736
    Added Reference https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497ef
    Added Reference https://usn.ubuntu.com/3572-1/
    Added Reference https://www.oracle.com/security-alerts/cpuapr2020.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Jan. 26, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:freetype:freetype2:*:*:*:*:*:*:*:* versions from (including) 2.9 OR *cpe:2.3:a:freetype:freetype:*:*:*:*:*:*:*:* versions from (including) 2.9
  • CVE Modified by [email protected]

    May. 24, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00054.html [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 15, 2020

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuapr2020.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 16, 2018

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5736 No Types Assigned https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5736 Third Party Advisory
    Changed Reference Type https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497ef No Types Assigned https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497ef Patch, Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/3572-1/ No Types Assigned https://usn.ubuntu.com/3572-1/ Third Party Advisory
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:a:freetype:freetype2:*:*:*:*:*:*:*:* versions up to (including) 2.9
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 16, 2018

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3572-1/ [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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-6942 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-2018-6942 weaknesses.

Exploit Prediction

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

0.32 }} -0.13%

score

0.66329

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability