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CVE-2021-3405
Component Overview
Vulnerability Overview
Name
CVE-2021-3405
Source
NVD (
link
)
Debian (
link
)
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.
CWEs
CWE-787
CWE-787
Published Date
Feb 23, 2021
Updated Date
Jun 17, 2026
Workaround
-
Advisories
https://github.com/Matroska-Org/libebml/issues/74
Exploit
https://lists.debian.org/debian-lts-announce/2021/04/msg00016.html
Third Party Advisory
https://security.gentoo.org/glsa/202208-21
Third Party Advisory
https://github.com/Matroska-Org/libebml/issues/74
Exploit
https://lists.debian.org/debian-lts-announce/2021/04/msg00016.html
Third Party Advisory
https://security.gentoo.org/glsa/202208-21
Third Party Advisory
Analysis
#
Affected Component
Analysis
libebml
Exploitable
Vulnerability Ratings
#
6.5
CVSSv31
4.3
CVSSv2
Others affected components
#
Name
Project
Project Version
Version
Status
libebml
buildroot
2025.02.x
1.4.5
Not Affected
libebml
buildroot
master
1.4.5
Not Affected
libebml
yocto
master
1.4.5
Not Affected
libebml
yocto
scarthgap
1.4.5
Not Affected