CVE-2021-39553

MEDIUM

swftools < 2020-07-10 - Denial of Service via NULL Pointer Dereference in grealloc()

Title source: llm

Description

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

References (1)

Core 1

Core References

Exploit, Issue Tracking, Technical Description x_refsource_misc

https://github.com/matthiaskramm/swftools/issues/103

Scores

CVSS v3 5.5

EPSS 0.0061

EPSS Percentile 44.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE

CWE-476

Status published

Products (1)

swftools/swftools < 2020-07-10

Published Sep 20, 2021

Tracked Since Feb 18, 2026