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CVE-2021-3404 Details
Description
In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow 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
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1926965 | CVE | Issue TrackingThird Party Advisory |
| https://github.com/Yeraze/ytnef/issues/86 | CVE | ExploitIssue TrackingThird Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1926965 | [email protected] | Issue TrackingThird Party Advisory |
| https://github.com/Yeraze/ytnef/issues/86 | [email protected] | ExploitIssue TrackingThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [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] |