Bug 1228607 (CVE-2015-1792)

Summary: CVE-2015-1792 OpenSSL: CMS verify infinite loop with unknown hash function
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: cdewolf, dandread, darran.lofthouse, jason.greene, jawilson, jclere, jdoyle, lgao, myarboro, pgier, pslavice, rsvoboda, security-response-team, tmraz, twalsh, vtunka, weli
Target Milestone: ---Keywords: Reopened, Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
A denial of service flaw was found in the way OpenSSL verified certain signed messages using CMS (Cryptographic Message Syntax). A remote attacker could cause an application using OpenSSL to use excessive amounts of memory by sending a specially crafted message for verification.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 02:41:46 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: 1228618, 1228619, 1228620, 1228621, 1231051    
Bug Blocks: 1227577    
Attachments:
Description Flags
Proposed patch for CVE-2015-1792 none

Description Huzaifa S. Sidhpurwala 2015-06-05 10:18:21 UTC 
The following was reported by OpenSSL upstream:

When verifying a signedData message the CMS code can enter an infinite loop if presented with an unknown hash function OID.

This can be used to perform denial of service against any system which verifies signedData messages using the CMS code.

This issue affects all current OpenSSL versions: 1.0.2, 1.0.1, 1.0.0 and 0.9.8.

OpenSSL 1.0.2 users should upgrade to 1.0.2b
OpenSSL 1.0.1 users should upgrade to 1.0.1n
OpenSSL 1.0.0 users should upgrade to 1.0.0s
OpenSSL 0.9.8 users should upgrade to 0.9.8zg

This issue was reported to OpenSSL on 31st March 2015 by Johannes Bauer. The fix was developed by Dr. Stephen Henson of the OpenSSL development team.


Acknowledgements:

Red Hat would like to thank the OpenSSL project for reporting this issue.
Comment 1 Huzaifa S. Sidhpurwala 2015-06-05 10:32:09 UTC 
Created attachment 1035154 [details]
Proposed patch for CVE-2015-1792
Comment 4 Huzaifa S. Sidhpurwala 2015-06-12 04:16:28 UTC 
Public via:

https://www.openssl.org/news/secadv_20150611.txt

Upstream commits:

OpenSSL-1.0.1:
https://github.com/openssl/openssl/commit/dd90a91d8771fd1ad5083fd46a2b3da16a587757

OpenSSL-0.9.8:
https://github.com/openssl/openssl/commit/92f9a8bf3844359bb50d86dab92bc24b074d350d
Comment 5 Huzaifa S. Sidhpurwala 2015-06-12 05:56:06 UTC 
Created openssl tracking bugs for this issue:

Affects: fedora-all [bug 1231051]
Comment 6 errata-xmlrpc 2015-06-15 20:49:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2015:1115 https://rhn.redhat.com/errata/RHSA-2015-1115.html
Comment 7 Huzaifa S. Sidhpurwala 2015-06-16 01:35:58 UTC 
Statement:

This issue does NOT affect the version of OpenSSL package as shipped with Red Hat Enterprise Linux 5.
Comment 8 Fedora Update System 2015-06-21 00:19:12 UTC 
openssl-1.0.1k-10.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 11 Fedora Update System 2015-06-24 15:57:39 UTC 
openssl-1.0.1k-10.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.