Bug 747658 (CVE-2011-3634)

Summary:	CVE-2011-3634 apt: Did not honor Verify-Host configuration option properly
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	Axel.Thimm, pmatilai
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:	2011-10-20 16:16:07 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:

Description Jan Lieskovsky 2011-10-20 16:14:45 UTC

It was reported that apt, Advanced Packaging Tool, did not honor the Verify-Host configuration option properly, when the x509 certificate host name did not match. A remote attacker could provide a specially-crafted APT repository URL and trick the local unsuspecting user into using it, potentially leading successful MITM attack.

References:
[1] https://bugs.launchpad.net/ubuntu/+source/apt/+bug/868353
[2] http://www.openwall.com/lists/oss-security/2011/10/19/4
    (CVE request)

Upstream patch:
[3] http://bazaar.launchpad.net/~donkult/apt/sid/revision/2053.1.28

Comment 1 Jan Lieskovsky 2011-10-20 16:16:07 UTC

This issue did NOT affect the versions of the apt package, as shipped with Fedora release of 14 and 15, since those versions do NOT support apt-https method yet.

Comment 2 Jan Lieskovsky 2011-10-21 13:07:58 UTC

The CVE identifier of CVE-2011-3634 has been assigned to this issue:
[4] http://www.openwall.com/lists/oss-security/2011/10/20/12