Bug 1778736 (CVE-2019-15699)

Summary:	CVE-2019-15699 suricata: the parser function TLSDecodeHSHelloExtensions tries to access a memory region that is not allocated
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	ish, jmlich83, jtfas90, sgrubb
Target Milestone:	---	Keywords:	Reopened, Security
Target Release:	---
Hardware:	All
OS:	Linux
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Last Closed:	2020-03-31 13:37:24 UTC	Type:	---
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Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Marian Rehak 2019-12-02 12:09:22 UTC

An issue was discovered in app-layer-ssl.c in Suricata 4.1.4. Upon receiving a corrupted SSLv3 (TLS 1.2) packet, the parser function TLSDecodeHSHelloExtensions tries to access a memory region that is not allocated, because the expected length of HSHelloExtensions does not match the real length of the HSHelloExtensions part of the packet.

Upstream Fix:

https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/

Comment 1 Steve Grubb 2019-12-02 13:39:16 UTC

Why do we keep opening bug reports for things that are fixed? This is fixed on all supported branches and may be closed.

Comment 2 Marian Rehak 2019-12-02 13:56:14 UTC

To have this reported in our system. There's a point however. This can be closed, since components were marked notaffected from the start. Closed -> notabug.