CVE-2021-42202: Null Pointer Dereference
First published: Tue May 31 2022(Updated: )
An issue was discovered in swftools through 20201222. A NULL pointer dereference exists in the function swf_DeleteFilter() located in swffilter.c. It allows an attacker to cause Denial of Service.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SWFTools | <=2020-12-22 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-42202?
CVE-2021-42202 is classified as a Denial of Service vulnerability.
How do I fix CVE-2021-42202?
To fix CVE-2021-42202, upgrade SWFTools to a version later than 20201222.
What is affected by CVE-2021-42202?
CVE-2021-42202 affects SWFTools versions up to and including 2020-12-22.
What causes the vulnerability in CVE-2021-42202?
CVE-2021-42202 is caused by a NULL pointer dereference in the swf_DeleteFilter() function.
Can CVE-2021-42202 be exploited remotely?
Yes, CVE-2021-42202 can be exploited by attackers to trigger a Denial of Service from a remote location.
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- version/swftools/2020-12-22