Bug 1267869 (CVE-2015-8076)

Summary:	CVE-2015-8076 cyrus-imapd: Out of bounds heap read in index_urlfetch
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jrusnack, j, mhlavink, psimerda, vanmeeuwen+fedora
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	cyrus-imapd 2.4.18	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-16 12:57:21 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:	1267871
Bug Blocks:	1267870

Description Adam Mariš 2015-10-01 09:15:46 UTC

A security fix in 2.4.18 version appeared that handles urlfetch range starting outside message range, causing information disclosure (out of bounds heap read).

Upstream patch:

https://cyrus.foundation/cyrus-imapd/commit/?id=07de4ff1bf2fa340b9d77b8e7de8d43d47a33921

Later there appeared another related commit:

https://cyrus.foundation/cyrus-imapd/commit/?id=c21e179c1f6b968fe69bebe079176714e511587b

CVE request:

http://seclists.org/oss-sec/2015/q3/646

Comment 1 Adam Mariš 2015-10-01 09:18:53 UTC

Created cyrus-imapd tracking bugs for this issue:

Affects: fedora-all [bug 1267871]

Comment 3 Adam Mariš 2015-11-05 10:39:07 UTC

CVE assignment:

http://seclists.org/oss-sec/2015/q4/223

Comment 4 Fedora Update System 2015-11-17 15:53:24 UTC

cyrus-imapd-2.4.18-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2015-11-17 18:24:33 UTC

cyrus-imapd-2.4.18-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2015-11-20 23:25:41 UTC

cyrus-imapd-2.4.18-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.