PT-2018-13604 · Matrix+2 · Matrix Synapse+2

Richvdh · Published 2018-09-18 · Updated 2023-05-16 · CVE-2018-16515

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Matrix Synapse versions prior to 0.33.3.1 Matrix Synapse version 0.33.2.1

Description The issue allows remote attackers to spoof events and possibly have other impacts by leveraging improper transaction and event signature validation.

Recommendations For Matrix Synapse versions prior to 0.33.3.1, update to version 0.33.3.1 or later. For Matrix Synapse version 0.33.2.1, update to version 0.33.3.1 or later.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

ALT-PU-2018-2390

CVE-2018-16515

GHSA-FMVH-RVQ5-HHJX

USN-6076-1

Affected Products

Alt Linux

Matrix Synapse

Ubuntu

References · 27

• https://github.com/matrix-org/synapse/issues/3796#event-1833126269 · Patch
• https://ubuntu.com/security/notices/USN-6076-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/IRW7YR2H3ASUSYX4AO4KMY3FNVDNYW3P · Vendor Advisory
• https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-12291 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-16515 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-16515 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRW7YR2H3ASUSYX4AO4KMY3FNVDNYW3P · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-16515 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6076-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11842 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-5885 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-16515 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-16515 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-10657 · Vendor Advisory