PT-2022-11566 · Swftools · Swftools

Cxlzffo · Published 2022-05-31 · Updated 2022-06-08 · CVE-2021-42203

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions swftools versions through 20201222

Description An issue exists in the function swf FontExtract DefineTextCallback() located in swftext.c, allowing an attacker to cause code execution due to a heap-use-after-free.

Recommendations For versions through 20201222, consider disabling the swf FontExtract DefineTextCallback() function as a temporary workaround until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-42203

Affected Products

Swftools

References · 7

• 🔥 https://github.com/matthiaskramm/swftools/issues/176 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-42203 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42203 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-42203 · Security Note
• https://osv.dev/vulnerability/CVE-2021-42203 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-42203 · Vendor Advisory
• https://t.me/cibsecurity/43684 · Telegram Post