Bug 1787060 (CVE-2019-3994)

Summary:	CVE-2019-3994 elog: use-after-free by sending multiple crafted HTTP POST requests
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	rosser.bjr
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-12-30 20:09:32 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:	1787062, 1787063
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2019-12-30 16:41:41 UTC

ELOG 3.1.4-57bea22 and below is affected by a denial of service vulnerability due to a use after free. A remote unauthenticated attacker can crash the ELOG server by sending multiple HTTP POST requests which causes the ELOG function retrieve_url() to use a freed variable.

Reference:
https://www.tenable.com/security/research/tra-2019-53

Comment 1 Guilherme de Almeida Suckevicz 2019-12-30 16:43:28 UTC

Created elog tracking bugs for this issue:

Affects: epel-7 [bug 1787063]
Affects: fedora-all [bug 1787062]

Comment 2 Product Security DevOps Team 2019-12-30 20:09:32 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.