Bug 1921347 (CVE-2020-8150) - CVE-2020-8150 nextcloud: Encryption scheme downgrade vulnerability
Summary: CVE-2020-8150 nextcloud: Encryption scheme downgrade vulnerability
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-8150
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: 1921348
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-01-27 22:21 UTC by Pedro Sampaio
Modified: 2021-01-28 02:41 UTC (History)
2 users (show)

Fixed In Version:
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Environment:
Last Closed: 2021-01-28 02:41:44 UTC

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Description Pedro Sampaio 2021-01-27 22:21:00 UTC 
A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.

http://seclists.org/fulldisclosure/2020/Dec/55
http://seclists.org/fulldisclosure/2020/Dec/57
http://seclists.org/fulldisclosure/2020/Dec/58
https://hackerone.com/reports/742588
https://nextcloud.com/security/advisory/?id=NC-SA-2020-039
Comment 1 Pedro Sampaio 2021-01-27 22:21:39 UTC 
Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 1921348]
Comment 2 Product Security DevOps Team 2021-01-28 02:41:44 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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