Bug 705288 (CVE-2011-1926)

Summary:	CVE-2011-1926 cyrus-imapd: STARTTLS plaintext command injection
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	mhlavink, MikeDawg, vanmeeuwen+fedora, vdanen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-02-28 21:32:42 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:	705294, 705774, 705775, 705776, 705777, 705778, 844261
Bug Blocks:

Description Jan Lieskovsky 2011-05-17 09:39:52 UTC

It was found, that Cyrus IMAP recognized IMAP, LMTP, NNTP and POP3
protocol commands during plaintex to TLS session switch (by TLS protocol
initialization). A remote attacker could use this flaw to insert
plaintext, protocol relevant, commands into TLS protocol initialization
messages, leading to execution of these commands during the ciphertext
protocol phase, potentially allowing the attacker to steal the victim's
mail or authentication credentials.

References:
[1] http://www.kb.cert.org/vuls/id/555316
[2] http://bugzilla.cyrusimap.org/show_bug.cgi?id=3423

Relevant upstream patch:
[3] http://git.cyrusimap.org/cyrus-imapd/patch/?id=523a91a5e86c8b9a27a138f04a3e3f2d8786f162

Comment 1 Jan Lieskovsky 2011-05-17 09:42:24 UTC

This issue affects the versions of the cyrus-imapd package, as shipped
with Red Hat Enterprise Linux 4, 5, and 6.

--

This issue affects the versions of the cyrus-imapd package, as shipped
with Fedora release of 13 and 14. Please schedule an update.

Comment 2 Jan Lieskovsky 2011-05-17 09:57:31 UTC

CVE Request:
[4] http://www.openwall.com/lists/oss-security/2011/05/17/2

Comment 3 Jan Lieskovsky 2011-05-17 09:58:27 UTC

Created cyrus-imapd tracking bugs for this issue

Affects: fedora-all [bug 705294]

Comment 4 Vincent Danen 2011-05-17 23:37:59 UTC

This was assigned CVE-2011-1926.

Comment 7 errata-xmlrpc 2011-06-08 15:26:07 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 6

Via RHSA-2011:0859 https://rhn.redhat.com/errata/RHSA-2011-0859.html