Published: 18/09/2018 Updated: 07/11/2023

CVSS v2 Base Score: 6.5 | Impact Score: 6.4 | Exploitability Score: 8

CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8

VMScore: 578

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Matrix Synapse prior to 0.33.3.1 allows remote malicious users to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.

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matrix synapse
debian debian linux 8.0

Debian Bug report logs - #908044 matrix-synapse: CVE-2018-16515: Failures to correctly validate signatures on transactions and events Package: matrix-synapse; Maintainer for matrix-synapse is Matrix Packaging Team <pkg-matrix-maintainers@listsaliothdebianorg>; Source for matrix-synapse is src:matrix-synapse (PTS, buildd, popcon) ...

CWE-347 https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1/https://github.com/matrix-org/synapse/issues/3796#event-1833126269 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRW7YR2H3ASUSYX4AO4KMY3FNVDNYW3P/https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908044 https://nvd.nist.gov

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CVE-2018-16515

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