Bug 1834323 (CVE-2020-10958) - CVE-2020-10958 dovecot: command followed by sufficient number of newlines leads to use-after-free
Summary: CVE-2020-10958 dovecot: command followed by sufficient number of newlines lea...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-10958
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: 1836935 1840357
Blocks: 1834329
TreeView+ depends on / blocked
 
Reported: 2020-05-11 14:04 UTC by Dhananjay Arunesh
Modified: 2021-02-16 20:04 UTC (History)
6 users (show)

Fixed In Version: Dovecot 2.3.10.1
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Clone Of:
Environment:
Last Closed: 2020-11-04 02:25:26 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4763 0 None None None 2020-11-04 03:41:49 UTC

Description Dhananjay Arunesh 2020-05-11 14:04:42 UTC 
A vulnerability was found in dovecot 2.3.0 before 2.3.10 where, by sending command followed by sufficient number of newlines triggers a use-after-free bug that might crash submission-login, submission or lmtp service.
Comment 1 Dhananjay Arunesh 2020-05-11 14:20:28 UTC 
Acknowledgments:

Name: Philippe Antoine (Catena Cyber)
Comment 2 Marian Rehak 2020-05-18 14:08:02 UTC 
Created dovecot tracking bugs for this issue:

Affects: fedora-all [bug 1836935]
Comment 5 Stefan Cornelius 2020-05-28 14:25:09 UTC 
External References:

https://dovecot.org/pipermail/dovecot-news/2020-May/000438.html
Comment 6 Product Security DevOps Team 2020-11-04 02:25:26 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-10958
Comment 7 errata-xmlrpc 2020-11-04 03:41:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4763 https://access.redhat.com/errata/RHSA-2020:4763
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