6.5
MEDIUM
CVE-2020-18775
Apache Libav Heap Buffer Overread Vulnerability
Description

In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_b_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.

INFO

Published Date :

Aug. 23, 2021, 10:15 p.m.

Last Modified :

Sept. 20, 2022, 9:11 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2020-18775 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 Libav libav
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-2020-18775.

URL Resource
https://bugzilla.libav.org/show_bug.cgi?id=1152 Broken Link Exploit Issue Tracking Third Party Advisory
https://cwe.mitre.org/data/definitions/126.html Technical Description

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-2020-18775 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-18775 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]

    Sep. 20, 2022

    Action Type Old Value New Value
    Changed Reference Type https://bugzilla.libav.org/show_bug.cgi?id=1152 Exploit, Issue Tracking, Third Party Advisory https://bugzilla.libav.org/show_bug.cgi?id=1152 Broken Link, Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://cwe.mitre.org/data/definitions/126.html No Types Assigned https://cwe.mitre.org/data/definitions/126.html Technical Description
  • CVE Modified by [email protected]

    Jul. 10, 2022

    Action Type Old Value New Value
    Added Reference https://cwe.mitre.org/data/definitions/126.html [No Types Assigned]
  • CWE Remap by [email protected]

    May. 03, 2022

    Action Type Old Value New Value
    Changed CWE CWE-787 CWE-125
  • Reanalysis by [email protected]

    Aug. 31, 2021

    Action Type Old Value New Value
    Changed Reference Type https://bugzilla.libav.org/show_bug.cgi?id=1152 Issue Tracking https://bugzilla.libav.org/show_bug.cgi?id=1152 Exploit, Issue Tracking, Third Party Advisory
  • Initial Analysis by [email protected]

    Aug. 31, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugzilla.libav.org/show_bug.cgi?id=1152 No Types Assigned https://bugzilla.libav.org/show_bug.cgi?id=1152 Issue Tracking
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:libav:libav:12.3:*:*:*:*:*:*:*
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-2020-18775 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-2020-18775 weaknesses.

Exploit Prediction

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

0.12 }} 0.01%

score

0.45109

percentile

CVSS31 - Vulnerability Scoring System
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