Bug 1629521 (CVE-2017-15705)

Summary:	CVE-2017-15705 spamassassin: Certain unclosed tags in crafted emails allow for scan timeouts and result in denial of service
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jjelen, jskarvad, kevin, nb, olysonek, wtogami
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	spamassassin 3.4.2	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the way SpamAssassin processes HTML email containing unclosed HTML tags. A carefully crafted mail message could cause SpamAssassin to consume significant resources. If a large number of these messages are sent, a denial of service could occur potentially delaying or preventing the delivery of email.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:37:50 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:	1629522, 1629523, 1632998, 1632999
Bug Blocks:	1629527

Description Sam Fowler 2018-09-17 03:15:42 UTC

Apache SpamAssassin before version 3.4.2 is vulnerable to a denial of service in the handling of crafted email. The vulnerability arises with certain unclosed tags in emails that cause markup to be handled incorrectly leading to scan timeouts.



External Reference:

https://mail-archives.apache.org/mod_mbox/spamassassin-announce/201809.mbox/raw/%3Cc57c0f41-742c-3c3e-249c-ae2614bf0d7d%40apache.org%3E/

Comment 1 Sam Fowler 2018-09-17 03:16:06 UTC

Created spamassassin tracking bugs for this issue:

Affects: fedora-all [bug 1629522]

Comment 4 Huzaifa S. Sidhpurwala 2018-09-25 04:51:09 UTC

Upstream patch:

https://svn.apache.org/viewvc?view=revision&revision=1815853
https://svn.apache.org/viewvc?view=revision&revision=1815688

Comment 6 errata-xmlrpc 2018-10-11 21:29:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2916 https://access.redhat.com/errata/RHSA-2018:2916