Bug 1310596 (CVE-2016-0705) - CVE-2016-0705 OpenSSL: Double-free in DSA code
Summary: CVE-2016-0705 OpenSSL: Double-free in DSA code
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-0705
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1301849 1301850 1301851 1301852 1312860 1312861 1312862 1313535 1313595 1313598 1331754 1618719 1618720 1618721 1624844 1624845
Blocks: 1301847 1395463
TreeView+ depends on / blocked
 
Reported: 2016-02-22 10:31 UTC by Huzaifa S. Sidhpurwala
Modified: 2021-02-17 04:19 UTC (History)
26 users (show)

Fixed In Version: openssl 1.0.1s, openssl 1.0.2g
Doc Type: Bug Fix
Doc Text:
A double-free flaw was found in the way OpenSSL parsed certain malformed DSA (Digital Signature Algorithm) private keys. An attacker could create specially crafted DSA private keys that, when processed by an application compiled against OpenSSL, could cause the application to crash.
Clone Of:
Environment:
Last Closed: 2019-06-08 02:48:25 UTC
Embargoed:

Attachments (Terms of Use)
Upstream patch (1.61 KB, patch)
2016-02-22 17:32 UTC, Adam Mariš 		no flags Details | Diff
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:0301 0 normal SHIPPED_LIVE Important: openssl security update 2016-03-01 21:07:25 UTC
Red Hat Product Errata RHSA-2016:0379 0 normal SHIPPED_LIVE Important: rhev-hypervisor security, bug fix and enhancement update 2016-03-09 19:10:28 UTC
Red Hat Product Errata RHSA-2016:2957 0 normal SHIPPED_LIVE Important: Red Hat JBoss Core Services Apache HTTP 2.4.23 Release 2016-12-16 03:11:19 UTC
Red Hat Product Errata RHSA-2018:2568 0 None None None 2018-08-27 14:20:25 UTC
Red Hat Product Errata RHSA-2018:2575 0 None None None 2018-08-28 19:18:51 UTC
Red Hat Product Errata RHSA-2018:2713 0 None None None 2018-09-17 14:53:45 UTC

Description Huzaifa S. Sidhpurwala 2016-02-22 10:31:19 UTC 
As per Upstream advisory:

A double free bug was discovered when OpenSSL parses malformed DSA private keys and could lead to a DoS attack or memory corruption for applications that receive DSA private keys from untrusted sources.  This scenario is considered rare.

This issue affects OpenSSL versions 1.0.2 and 1.0.1.

OpenSSL 1.0.2 users should upgrade to 1.0.2g
OpenSSL 1.0.1 users should upgrade to 1.0.1s

This issue was reported to OpenSSL on 7th February 2016 by Adam Langley (Google/BoringSSL) using libFuzzer. The fix was developed by Dr Stephen Henson of OpenSSL.
Comment 1 Adam Mariš 2016-02-22 17:32:30 UTC 
Created attachment 1129420 [details]
Upstream patch
Comment 4 Martin Prpič 2016-02-29 12:08:08 UTC 
Public via:

Upstream patch:

http://git.openssl.org/?p=openssl.git;a=commitdiff;h=ab4a81f69ec88d06c9d8de15326b9296d7f498ed
Comment 5 Martin Prpič 2016-02-29 12:10:16 UTC 
Created openssl101e tracking bugs for this issue:

Affects: epel-5 [bug 1312862]
Comment 6 Martin Prpič 2016-02-29 12:10:21 UTC 
Created openssl tracking bugs for this issue:

Affects: fedora-all [bug 1312860]
Comment 7 Martin Prpič 2016-02-29 12:10:26 UTC 
Created mingw-openssl tracking bugs for this issue:

Affects: fedora-all [bug 1312861]
Comment 8 Martin Prpič 2016-02-29 12:27:38 UTC 
Acknowledgments:

Name: the OpenSSL project
Upstream: Adam Langley (Google/BoringSSL)
Comment 9 errata-xmlrpc 2016-03-01 16:09:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2016:0301 https://rhn.redhat.com/errata/RHSA-2016-0301.html
Comment 13 Fedora Update System 2016-03-03 20:22:41 UTC 
openssl-1.0.2g-2.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 14 errata-xmlrpc 2016-03-09 14:49:22 UTC 
This issue has been addressed in the following products:

  RHEV-H and Agents for RHEL-6
  RHEV-H and Agents for RHEL-7

Via RHSA-2016:0379 https://rhn.redhat.com/errata/RHSA-2016-0379.html
Comment 15 Fedora Update System 2016-03-13 09:51:56 UTC 
openssl-1.0.1k-14.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 16 Fedora Update System 2016-03-17 18:24:40 UTC 
openssl101e-1.0.1e-7.el5 has been pushed to the Fedora EPEL 5 stable repository. If problems still persist, please make note of it in this bug report.
Comment 18 errata-xmlrpc 2016-12-15 22:15:41 UTC 
This issue has been addressed in the following products:



Via RHSA-2016:2957 https://rhn.redhat.com/errata/RHSA-2016-2957.html
Comment 19 errata-xmlrpc 2018-08-27 14:20:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Supplementary

Via RHSA-2018:2568 https://access.redhat.com/errata/RHSA-2018:2568
Comment 20 errata-xmlrpc 2018-08-28 19:18:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6 Supplementary

Via RHSA-2018:2575 https://access.redhat.com/errata/RHSA-2018:2575
Comment 22 errata-xmlrpc 2018-09-17 14:53:33 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 5.8

Via RHSA-2018:2713 https://access.redhat.com/errata/RHSA-2018:2713
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