Bug 1770333 (CVE-2019-18835) - CVE-2019-18835 matrix-synapse: mishandles signature checking on some federation APIs
Summary: CVE-2019-18835 matrix-synapse: mishandles signature checking on some federati...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-18835
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1770334
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-11-08 19:01 UTC by Guilherme de Almeida Suckevicz
Modified: 2019-11-09 00:51 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-11-09 00:51:39 UTC
Embargoed:

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2019-11-08 19:01:44 UTC 
Matrix Synapse before 1.5.0 mishandles signature checking on some federation APIs. Events sent over /send_join, /send_leave, and /invite may not be correctly signed, or may not come from the expected servers.

Reference:
https://github.com/matrix-org/synapse/pull/6262
Comment 1 Guilherme de Almeida Suckevicz 2019-11-08 19:01:57 UTC 
Created matrix-synapse tracking bugs for this issue:

Affects: fedora-all [bug 1770334]
Comment 3 Product Security DevOps Team 2019-11-09 00:51:39 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Note You need to log in before you can comment on or make changes to this bug.