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CVE-2021-3403 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1926967 | CVE | Issue TrackingThird Party Advisory |
| https://github.com/Yeraze/ytnef/issues/85 | CVE | ExploitIssue TrackingThird Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1926967 | [email protected] | Issue TrackingThird Party Advisory |
| https://github.com/Yeraze/ytnef/issues/85 | [email protected] | ExploitIssue TrackingThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-415 | Double Free | [email protected] |
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ytnef project ytnef | 1.9.3 |
CPE
Remediation
| |
| redhat enterprise linux | 7.0 |
CPE
Remediation
| |
| fedoraproject fedora | 33 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Apr 25, 2022 | Reanalysis | [email protected] |
| Mar 10, 2021 | Initial Analysis | [email protected] |