Bug 1774027 (CVE-2019-17069)

Summary:	CVE-2019-17069 putty: possible access to freed memory by sending the SSH1_MSG_DISCONNECT message
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:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fedora, jima, jskarvad, olysonek, tremble
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:	2019-11-19 18:51:13 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:	1774029, 1774030, 1774031
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2019-11-19 13:11:30 UTC

PuTTY before 0.73 might allow remote SSH-1 servers to cause a denial of service by accessing freed memory locations via an SSH1_MSG_DISCONNECT message.

Reference:
https://lists.tartarus.org/pipermail/putty-announce/2019/000029.html

Comment 1 Guilherme de Almeida Suckevicz 2019-11-19 13:11:50 UTC

Created putty tracking bugs for this issue:

Affects: epel-6 [bug 1774029]
Affects: epel-7 [bug 1774030]
Affects: fedora-all [bug 1774031]

Comment 2 Product Security DevOps Team 2019-11-19 18:51:13 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.