Bug 1806872 (CVE-2020-8793)

Summary:	CVE-2020-8793 opensmtpd: Reading of arbitrary file by unprivileged attacker can result in information disclosure or privilege escalation
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	denis
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-02-25 09:49:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1806873, 1806874
Bug Blocks:

Description Marian Rehak 2020-02-25 08:53:10 UTC

An unprivileged local attacker can read the first line of an arbitrary file (for example, root's password hash in /etc/master.passwd) or the entire contents of another user's file which results in information disclosure or privileges escalation.

Upstream advisory:

https://www.openwall.com/lists/oss-security/2020/02/24/4

Comment 1 Marian Rehak 2020-02-25 08:56:40 UTC

Created opensmtpd tracking bugs for this issue:

Affects: epel-all [bug 1806874]
Affects: fedora-all [bug 1806873]

Comment 2 Product Security DevOps Team 2020-02-25 09:49:47 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.