Published: 04/03/2021 Updated: 25/04/2022

CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 605

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

In ytnef 1.9.3, the TNEFSubjectHandler function in lib/ytnef.c allows remote malicious users to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file.

Vulnerable Product	Search on Vulmon	Subscribe to Product
ytnef project ytnef 1.9.3
redhat enterprise linux 7.0
fedoraproject fedora 33

Debian Bug report logs - #982594 libytnef: CVE-2021-3403 Package: src:libytnef; Maintainer for src:libytnef is Ricardo Mones <mones@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Fri, 12 Feb 2021 08:57:02 UTC Severity: important Tags: security, upstream Found in version libytnef/193-1 ...

In ytnef 193, the TNEFSubjectHandler function in lib/ytnefc allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file ...

CWE-415 https://github.com/Yeraze/ytnef/issues/85 https://bugzilla.redhat.com/show_bug.cgi?id=1926967 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982594 https://nvd.nist.gov

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CVE-2021-3403

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