7.8
HIGH
CVE-2018-20763
GPAC Buffer Overflow Vulnerability
Description

In GPAC 0.7.1 and earlier, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because of missing szLineConv bounds checking.

INFO

Published Date :

Feb. 6, 2019, 11:29 p.m.

Last Modified :

April 15, 2019, 6:59 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2018-20763 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 Debian debian_linux
1 Gpac_project gpac
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-2018-20763.

URL Resource
https://github.com/gpac/gpac/commit/1c449a34fe0b50aaffb881bfb9d7c5ab0bb18cdd Patch Third Party Advisory
https://github.com/gpac/gpac/issues/1188 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00040.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3926-1/ Third Party Advisory

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-2018-20763 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-20763 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 [email protected]

    May. 14, 2024

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

    Apr. 15, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:gpac_project:gpac:*:*:*:*:*:*:*:* versions up to (including) 0.7.2 OR *cpe:2.3:a:gpac_project:gpac:*:*:*:*:*:*:*:* versions up to (including) 0.7.1
  • CVE Modified by [email protected]

    Apr. 09, 2019

    Action Type Old Value New Value
    Changed Description In GPAC through 0.7.2, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because of missing szLineConv bounds checking. In GPAC 0.7.1 and earlier, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because of missing szLineConv bounds checking.
  • Modified Analysis by [email protected]

    Mar. 29, 2019

    Action Type Old Value New Value
    Changed Reference Type https://usn.ubuntu.com/3926-1/ No Types Assigned https://usn.ubuntu.com/3926-1/ Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/02/msg00040.html Third Party Advisory https://lists.debian.org/debian-lts-announce/2019/02/msg00040.html Mailing List, Third Party Advisory
    Added CPE Configuration OR *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:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 29, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3926-1/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 28, 2019

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/02/msg00040.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/02/msg00040.html Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 28, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/02/msg00040.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 07, 2019

    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:P/I:P/A:P)
    Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/gpac/gpac/commit/1c449a34fe0b50aaffb881bfb9d7c5ab0bb18cdd No Types Assigned https://github.com/gpac/gpac/commit/1c449a34fe0b50aaffb881bfb9d7c5ab0bb18cdd Patch, Third Party Advisory
    Changed Reference Type https://github.com/gpac/gpac/issues/1188 No Types Assigned https://github.com/gpac/gpac/issues/1188 Exploit, Third Party Advisory
    Added CWE CWE-787
    Added CPE Configuration OR *cpe:2.3:a:gpac_project:gpac:*:*:*:*:*:*:*:* versions up to (including) 0.7.2
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-2018-20763 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-2018-20763 weaknesses.

Exploit Prediction

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

0.12 }} 0.02%

score

0.46573

percentile

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