CVEvulnerability
CVE-2021-3405
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-02-23
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-787
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.
Affected configurations
• matroska libebml (< 1.4.2)
• fedoraproject fedora 32
• fedoraproject fedora 33
• fedoraproject fedora 34
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://github.com/Matroska-Org/libebml/issues/74 Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00016.html Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNHQI6MDOECJ2HT5GCLEX2DMJFEOWPW7/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHIIMWZKHHELFF4NRDMOOCS3HKK3K4DF/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YY7R2JZRO5I6WS62KTJFTZGKYELVFTVB/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-21 Third Party Advisory
- https://github.com/Matroska-Org/libebml/issues/74 Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00016.html Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNHQI6MDOECJ2HT5GCLEX2DMJFEOWPW7/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHIIMWZKHHELFF4NRDMOOCS3HKK3K4DF/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YY7R2JZRO5I6WS62KTJFTZGKYELVFTVB/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-21 Third Party Advisory