Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-36430 First vendor Publication 2021-07-20
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36430

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Os 1

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
GENTOO https://security.gentoo.org/glsa/202208-13
MISC https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099...
https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632

Alert History

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Date Informations
2023-11-07 21:34:29
  • Multiple Updates
2022-12-09 21:27:42
  • Multiple Updates
2022-08-11 00:43:24
  • Multiple Updates
2022-05-27 17:27:30
  • Multiple Updates
2022-03-26 09:23:19
  • Multiple Updates
2021-07-29 00:23:00
  • Multiple Updates
2021-07-20 17:22:47
  • Multiple Updates
2021-07-20 13:22:50
  • First insertion