Vulnerability Details : CVE-2021-42199

An issue was discovered in swftools through 20201222. A heap buffer overflow exists in the function swf_FontExtract_DefineTextCallback() located in swftext.c. It allows an attacker to cause code execution.

Vulnerability category: OverflowMemory Corruption

Published 2022-06-02 14:15:30

Updated 2022-06-08 18:55:39

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-42199

Probability of exploitation activity in the next 30 days: 0.07%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 27 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-42199

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	[email protected]
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	1.8	5.9	[email protected]
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-42199

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: [email protected] (Primary)

References for CVE-2021-42199

https://github.com/matthiaskramm/swftools/issues/173

Exploit;Third Party Advisory

Products affected by CVE-2021-42199

Swftools » Swftools
Versions up to, including, (<=) 2020-12-22
cpe:2.3:a:swftools:swftools:*:*:*:*:*:*:*:*
Matching versions