Bug 1778222 (CVE-2019-19272)

Summary:	CVE-2019-19272 proftpd: NULL pointer dereference in tls_verify_crl when validating the certificate of a client
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:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ingvar, itamar, matthias, paul
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:	2019-11-29 19:04:51 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:	1778225, 1778226
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2019-11-29 14:12:16 UTC

An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer (a variable initialized to NULL) leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup.

Reference:
https://github.com/proftpd/proftpd/issues/858

Comment 1 Guilherme de Almeida Suckevicz 2019-11-29 14:14:33 UTC

Created proftpd tracking bugs for this issue:

Affects: epel-all [bug 1778226]
Affects: fedora-all [bug 1778225]

Comment 2 Product Security DevOps Team 2019-11-29 19:04:51 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.