Bug 2022102 (CVE-2021-42074) - CVE-2021-42074 barrier: segmentation fault in the server-side implementation by quickly opening and closing TCP connections while sending a hello message
Summary: CVE-2021-42074 barrier: segmentation fault in the server-side implementation ...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-42074
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: 2022103 2022104
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-11-10 18:38 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-11-10 18:58 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-11-10 18:58:05 UTC
Embargoed:

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2021-11-10 18:38:11 UTC 
An issue was discovered in Barrier before 2.3.4. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session.

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 18:38:29 UTC 
Created barrier tracking bugs for this issue:

Affects: epel-8 [bug 2022104]
Affects: fedora-all [bug 2022103]
Comment 2 Product Security DevOps Team 2021-11-10 18:58:04 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.