EUVD-2021-31369

🗓️ 03 Oct 2025 20:07:09Reported by EUVDType

Olm session in Matrix libolm before 3.2.7 has a buffer overflow vulnerability, affecting cryptographic channels.

Reporter	Title	Published	Views	Family All 53
ALT Linux	Security fix for the ALT Linux 10 package thunderbird version 91.4.1-alt1	27 Dec 202100:00	–	altlinux
AlpineLinux	CVE-2021-44538	14 Dec 202113:26	–	alpinelinux
AstraLinux	Astra Linux - уязвимость в thunderbird	3 May 202623:59	–	astralinux
Circl	CVE-2021-44538	14 Dec 202116:12	–	circl
CNNVD	Matrix libolm 缓冲区错误漏洞	14 Dec 202100:00	–	cnnvd
CVE	CVE-2021-44538	14 Dec 202113:26	–	cve
Cvelist	CVE-2021-44538	14 Dec 202113:26	–	cvelist
Debian	[SECURITY] [DLA 2874-1] thunderbird security update	4 Jan 202210:10	–	debian
Debian	[SECURITY] [DSA 5034-1] thunderbird security update	2 Jan 202217:01	–	debian
Debian CVE	CVE-2021-44538	14 Dec 202113:26	–	debiancve

[
  {
    "enisaIdVendor": [
      {
        "id": "f4cf850d-19d1-315d-bd50-cc62e2fc7b11",
        "vendor": {
          "name": "n/a"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "117128eb-9147-3ad5-81b1-0101a1709666",
        "product": {
          "name": "n/a"
        },
        "product_version": "n/a"
      }
    ]
  }
]

Source	Link
suse	www.suse.com/security/cve/CVE-2021-44538.html
debian	www.debian.org/security/2022/dsa-5034
ubuntu	www.ubuntu.com/security/CVE-2021-44538
advisories	www.advisories.mageia.org/CVE-2021-44538.html
security	www.security.archlinux.org/CVE-2021-44538
gitlab	www.gitlab.matrix.org/matrix-org/olm/-/tags
matrix	www.matrix.org/blog/2021/12/13/disclosure-buffer-overflow-in-libolm-and-matrix-js-sdk
lists	www.lists.debian.org/debian-lts-announce/2022/01/msg00001.html

03 Oct 2025 20:07Current

9.1High risk

Vulners AI Score9.1

CVSS 3.19.8

CVSS 27.5

EPSS0.0238