vulnerability
Arch Linux: Arbitrary code execution (CVE-2021-3405)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Feb 23, 2021 | Jul 11, 2025 | Nov 27, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Feb 23, 2021
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A security issue was found in libebml before version 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-3405
- https://attackerkb.com/topics/CVE-2021-3405
- URL-https://github.com/Matroska-Org/libebml/issues/74
- URL-https://lists.debian.org/debian-lts-announce/2021/04/msg00016.html
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JNHQI6MDOECJ2HT5GCLEX2DMJFEOWPW7/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHIIMWZKHHELFF4NRDMOOCS3HKK3K4DF/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YY7R2JZRO5I6WS62KTJFTZGKYELVFTVB/
- URL-https://security.archlinux.org/ASA-202103-18
- URL-https://security.gentoo.org/glsa/202208-21
- CWE-787
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