Bug 1806877 (CVE-2020-8794) - CVE-2020-8794 opensmtpd: An out-of-bounds read could lead to remote code execution
Summary: CVE-2020-8794 opensmtpd: An out-of-bounds read could lead to remote code exec...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-8794
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1809060 1809061
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-02-25 09:07 UTC by Marian Rehak
Modified: 2023-09-07 22:03 UTC (History)
3 users (show)

Fixed In Version:
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Last Closed: 2020-03-03 04:31:58 UTC
Embargoed:

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Description Marian Rehak 2020-02-25 09:07:34 UTC 
An out-of-bounds read introduced in commit 80c6a60c, "when peer outputs a multi-line response ..." could lead to remote code execution either
as root, after May 2018 (commit a8e22235, "switch smtpd to new grammar"); or as any non-root user, before May 2018.

Upstream advisory:

https://www.openwall.com/lists/oss-security/2020/02/24/5
Comment 1 Marian Rehak 2020-03-02 11:14:13 UTC 
Created opensmtpd tracking bugs for this issue:

Affects: epel-all [bug 1809061]
Affects: fedora-all [bug 1809060]
Comment 2 Product Security DevOps Team 2020-03-03 04:31:58 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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