CVE Vulnerabilities

CVE-2023-26991

Use After Free

Published: Apr 04, 2023 | Modified: Feb 12, 2025
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

SWFTools v0.9.2 was discovered to contain a stack-use-after-scope in the swf_ReadSWF2 function in lib/rfxswf.c.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Swftools Swftools 0.9.2 (including) 0.9.2 (including)
Swftools Ubuntu bionic *
Swftools Ubuntu trusty *
Swftools Ubuntu xenial *

Potential Mitigations

References