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MEDIUM · 5.5

CVE-2021-39557

An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function copyString() located in gmem.cc. It allows an attacker to cause Denial of Service.

Vulnerability Description

An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function copyString() located in gmem.cc. It allows an attacker to cause Denial of Service.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
SwftoolsSwftools<= 2020-07-10

Related Weaknesses (CWE)

CWE-476

References

FAQ

What is CVE-2021-39557?

CVE-2021-39557 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function copyString() located in gmem.cc. It allows an attacker to cause Denial of Service.

How severe is CVE-2021-39557?

CVE-2021-39557 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-39557?

Check the references section above for vendor advisories and patch information. Affected products include: Swftools Swftools.