Bug 2213000 (CVE-2023-32683) - CVE-2023-32683 matrix-synapse: URL deny list bypass via oEmbed and image URLs when generating previews
Summary: CVE-2023-32683 matrix-synapse: URL deny list bypass via oEmbed and image URLs...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2023-32683
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: 2213002
Blocks: 2212998
TreeView+ depends on / blocked
 
Reported: 2023-06-06 20:19 UTC by Zack Miele
Modified: 2023-06-07 04:29 UTC (History)
0 users

Fixed In Version: matrix-synapse 1.85.0
Clone Of:
Environment:
Last Closed: 2023-06-07 04:29:32 UTC
Embargoed:

Attachments (Terms of Use)

Description Zack Miele 2023-06-06 20:19:33 UTC 
CVE-2023-32683 - Low Severity: A discovered oEmbed or image URL can bypass the url_preview_url_blacklist setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the url_preview_ip_range_blacklist setting (by default this only allows public IPs).

https://github.com/matrix-org/synapse/security/advisories/GHSA-98px-6486-j7qc
Comment 1 Zack Miele 2023-06-06 20:20:09 UTC 
Created matrix-synapse tracking bugs for this issue:

Affects: fedora-all [bug 2213002]
Comment 2 Product Security DevOps Team 2023-06-07 04:29:30 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.