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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2016-2178

CVE-2016-2178

MEDIUM5.5

The dsa_sign_setup function in crypto/dsa/dsa_ossl

Published Jun 20, 2016

Modified 1 years ago

Details

The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of constant-time operations, which makes it easier for local users to discover a DSA private key via a timing side-channel attack.

References(70)

http://eprint.iacr.org/2016/594.pdf

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html

http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html

http://rhn.redhat.com/errata/RHSA-2016-1940.html

http://rhn.redhat.com/errata/RHSA-2016-2957.html

http://rhn.redhat.com/errata/RHSA-2017-1659.html

http://seclists.org/fulldisclosure/2017/Jul/31

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl

http://www-01.ibm.com/support/docview.wss?uid=swg21995039

http://www.debian.org/security/2016/dsa-3673

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en

http://www.openwall.com/lists/oss-security/2016/06/08/10

http://www.openwall.com/lists/oss-security/2016/06/08/11

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

NoneA:N

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Ecosystems

Timeline

PublishedJun 20, 2016

ModifiedAug 5, 2024

CVE-2016-2178 | Mondoo Vulnerability Intelligence