[Pkg-matrix-maintainers] Bug#989997: olm: CVE-2021-34813

Hubert Chathi uhoreg at debian.org
Thu Jun 17 22:49:09 BST 2021


On Thu, 17 Jun 2021 15:45:22 +0200, Salvatore Bonaccorso <carnil at debian.org> said:

> The following vulnerability was published for olm.

> CVE-2021-34813[0]:
> | 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.

FWIW, no application in buster uses the affected function.

-- 
Hubert Chathi <uhoreg at debian.org> -- https://www.uhoreg.ca/
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