CVEvulnerability

CVE-2021-3403

7.8 HIGH Published 2021-03-04 Modified 2026-06-17 Official page ↗

Status: Modified
Published: 2021-03-04
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses: CWE-415, CWE-416

Description

In ytnef 1.9.3, the TNEFSubjectHandler function in lib/ytnef.c 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.

Affected configurations

• ytnef project ytnef 1.9.3 • redhat enterprise linux 7.0 • fedoraproject fedora 33

Weakness · CWE (2)

CWE-415 Double Free weakness
CWE-416 Use After Free weakness

References

https://bugzilla.redhat.com/show_bug.cgi?id=1926967 Issue Tracking, Third Party Advisory
https://github.com/Yeraze/ytnef/issues/85 Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1926967 Issue Tracking, Third Party Advisory
https://github.com/Yeraze/ytnef/issues/85 Exploit, Issue Tracking, Third Party Advisory

CVE-2021-3403

Description

Affected configurations

Related

Weakness · CWE (2)

References