Bug 2022105 (CVE-2021-42076) - CVE-2021-42076 barrier: memory exhaustion in the server-side implementation and barrierc by sending long TCP messages
Summary: CVE-2021-42076 barrier: memory exhaustion in the server-side implementation a...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-42076
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: 2022107 2022106
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-11-10 18:42 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-11-10 18:58 UTC (History)
1 user (show)

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Last Closed: 2021-11-10 18:58:29 UTC
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Description Guilherme de Almeida Suckevicz 2021-11-10 18:42:21 UTC 
An issue was discovered in Barrier before 2.3.4. An attacker can cause memory exhaustion in the barriers component (aka the server-side implementation of Barrier) and barrierc by sending long TCP messages.

References:
https://github.com/debauchee/barrier/releases/tag/v2.3.4
http://www.openwall.com/lists/oss-security/2021/11/02/4
Comment 1 Guilherme de Almeida Suckevicz 2021-11-10 18:42:39 UTC 
Created barrier tracking bugs for this issue:

Affects: epel-8 [bug 2022107]
Affects: fedora-all [bug 2022106]
Comment 2 Product Security DevOps Team 2021-11-10 18:58:28 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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