Bug 2048993 (CVE-2022-21689) - CVE-2022-21689 onionshare: possibility to block file upload for other users
Summary: CVE-2022-21689 onionshare: possibility to block file upload for other users
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-21689
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2048994
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-02-01 10:03 UTC by Marian Rehak
Modified: 2022-02-01 10:31 UTC (History)
2 users (show)

Fixed In Version:
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Environment:
Last Closed: 2022-02-01 10:31:11 UTC
Embargoed:


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Description Marian Rehak 2022-02-01 10:03:02 UTC
In affected versions the receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script. An adversary with access to the receive mode can block file upload for others. There is no way to block this attack in public mode due to the anonymity properties of the tor network.

Reference:

https://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpc
https://github.com/onionshare/onionshare/releases/tag/v2.5

Comment 1 Marian Rehak 2022-02-01 10:03:17 UTC
Created onionshare tracking bugs for this issue:

Affects: fedora-all [bug 2048994]

Comment 2 Product Security DevOps Team 2022-02-01 10:31:09 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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