Bug 1457121 – CVE-2017-9022 strongswan: Insufficient validation of RSA public keys passed to the gmp plugin

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Bug 1457121 - (CVE-2017-9022) CVE-2017-9022 strongswan: Insufficient validation of RSA public keys passed to the gmp plugin

Summary:	CVE-2017-9022 strongswan: Insufficient validation of RSA public keys passed t...

Status:	CLOSED NOTABUG

Aliases:	CVE-2017-9022

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=moderate,public=20170530,repor...
Keywords:	Security

Depends On:	1457123 1457124
Blocks:	1457125
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Reported:	2017-05-31 03:43 EDT by Andrej Nemec
Modified:	2017-07-05 10:48 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	strongswan 5.5.3
Doc Type:	If docs needed, set a value
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Environment:
Last Closed:	2017-07-05 10:48:23 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Andrej Nemec 2017-05-31 03:43:14 EDT

It was found that RSA public keys passed to the gmp plugin aren't validated sufficiently before attempting signature verification, so that invalid input might lead to a floating point exception and crash of the process. A certificate with an appropriately prepared public key sent by a peer could be used for a denial-of-service attack.

External References:

https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-(cve-2017-9022).html

Comment 1 Andrej Nemec 2017-05-31 03:45:27 EDT

Created strongswan tracking bugs for this issue:

Affects: epel-all [bug 1457123]
Affects: fedora-all [bug 1457124]

Comment 2 Stefan Cornelius 2017-07-05 10:48:32 EDT

Statement:

This issue did not affect the versions of strongimcv as shipped with Red Hat Enterprise Linux 7, as they did not include support for the gmp plugin.

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