Vulnerability Description
A flaw was found in libebml before 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml.
CVSS Score
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Matroska | Libebml | < 1.4.2 |
| Fedoraproject | Fedora | 32 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://github.com/Matroska-Org/libebml/issues/74ExploitIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00016.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202208-21Third Party Advisory
- https://github.com/Matroska-Org/libebml/issues/74ExploitIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00016.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202208-21Third Party Advisory
FAQ
What is CVE-2021-3405?
CVE-2021-3405 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A flaw was found in libebml before 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml.
How severe is CVE-2021-3405?
CVE-2021-3405 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3405?
Check the references section above for vendor advisories and patch information. Affected products include: Matroska Libebml, Fedoraproject Fedora, Debian Debian Linux.