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CVE-2021-34813

PoC —
CVSS 3.1
9.8 critical
EPSS
4%p91
Published
()
Modified
Description

Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client (while it is attempting to retrieve an Olm encrypted room key backup from the homeserver) because olm_pk_decrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build configurations.

Vendors
matrix
Products
olm
Weakness
CWE-787
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (4.3%)

In the news

No ingested article mentions this CVE yet.