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:
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Last Closed: 2019-11-09 00:51:39 UTC
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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.


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