#VU56712 Double Free in ytnef - CVE-2021-3403 

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Main Vulnerability Database Vulnerabilities #VU56712

#VU56712 Double Free in ytnef - CVE-2021-3403

Published: September 20, 2021


Vulnerability identifier: #VU56712
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-3403
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
ytnef
Software vendor:
Yeraze (Randall Hand)

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a double free error within the TNEFSubjectHandler() function in lib/ytnef.c. A remote attacker can trick the victim to open a specially crafted file, trigger a double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.

External links