Medium severity6.5NVD Advisory· Published Feb 23, 2021· Updated Jun 17, 2026
CVE-2021-3405
CVE-2021-3405
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6- libebml/libebmldescription
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- github.com/Matroska-Org/libebml/issues/74nvdExploitIssue TrackingThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/04/msg00016.htmlnvdThird Party Advisory
- security.gentoo.org/glsa/202208-21nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNHQI6MDOECJ2HT5GCLEX2DMJFEOWPW7/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHIIMWZKHHELFF4NRDMOOCS3HKK3K4DF/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YY7R2JZRO5I6WS62KTJFTZGKYELVFTVB/nvd
News mentions
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