PT-2021-22640 · Swftools · Swftools

Published 2021-09-20 · Updated 2021-09-23 · CVE-2021-39557

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: swftools versions prior to 20200710

Description: An issue exists in the function copyString() located in gmem.cc, which allows an attacker to cause Denial of Service due to a NULL pointer dereference.

Recommendations: For versions prior to 20200710, update to a version that contains a fix for this issue to prevent Denial of Service attacks.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-39557

Affected Products

Swftools

References · 6

• 🔥 https://github.com/matthiaskramm/swftools/issues/97 · Exploit
• https://osv.dev/vulnerability/CVE-2021-39557 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39557 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-39557 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-39557 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-39557 · Security Note