// For flags

CVE-2015-3193

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.

La implementación de exponenciación al cuadrado de Montgomery en crypto/bn/asm/x86_64-mont5.pl en OpenSSL 1.0.2 en versiones anteriores a 1.0.2e en la plataforma x86_64, como se utiliza por la función BN_mod_exp, no maneja correctamente la propagación de acarreo y produce una salida incorrecta, lo que hace más fácil para atacantes remotos obtener información sensible de las claves privadas a través de un ataque contra el uso de una suite de cifrado (1) Diffie-Hellman (DH) o (2) Diffie-Hellman Ephemeral (DHE).

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-04-10 CVE Reserved
  • 2015-12-03 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
References (22)
URL Tag Source
http://fortiguard.com/advisory/openssl-advisory-december-2015 Third Party Advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 Third Party Advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 Third Party Advisory
http://www.fortiguard.com/advisory/openssl-advisory-december-2015 Third Party Advisory
http://www.securityfocus.com/bid/78705 Third Party Advisory
http://www.securityfocus.com/bid/91787 Third Party Advisory
http://www.securitytracker.com/id/1034294 Third Party Advisory
https://blog.fuzzing-project.org/31-Fuzzing-Math-miscalculations-in-OpenSSLs-BN_mod_exp-CVE-2015-3193.html Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1288317 Issue Tracking
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=d73cc256c8e256c32ed959456101b73ba9842f72
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05398322 Third Party Advisory
https://kb.isc.org/article/AA-01438 Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40100 Third Party Advisory
URL Date SRC
URL Date SRC
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html 2023-02-13
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html 2023-02-13
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html 2023-02-13
URL Date SRC
http://openssl.org/news/secadv/20151203.txt 2023-02-13
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204-openssl 2023-02-13
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.539966 2023-02-13
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.754583 2023-02-13
http://www.ubuntu.com/usn/USN-2830-1 2023-02-13
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openssl
Search vendor "Openssl"
 Openssl
Search vendor "Openssl" for product "Openssl"
 1.0.2
Search vendor "Openssl" for product "Openssl" and version "1.0.2"
-
Affected
Openssl
Search vendor "Openssl"
 Openssl
Search vendor "Openssl" for product "Openssl"
 1.0.2a
Search vendor "Openssl" for product "Openssl" and version "1.0.2a"
-
Affected
Openssl
Search vendor "Openssl"
 Openssl
Search vendor "Openssl" for product "Openssl"
 1.0.2b
Search vendor "Openssl" for product "Openssl" and version "1.0.2b"
-
Affected
Openssl
Search vendor "Openssl"
 Openssl
Search vendor "Openssl" for product "Openssl"
 1.0.2c
Search vendor "Openssl" for product "Openssl" and version "1.0.2c"
-
Affected
Openssl
Search vendor "Openssl"
 Openssl
Search vendor "Openssl" for product "Openssl"
 1.0.2d
Search vendor "Openssl" for product "Openssl" and version "1.0.2d"
-
Affected
Nodejs
Search vendor "Nodejs"
 Node.js
Search vendor "Nodejs" for product "Node.js"
 >= 4.0.0 <= 4.1.2
Search vendor "Nodejs" for product "Node.js" and version " >= 4.0.0 <= 4.1.2"
-
Affected
Nodejs
Search vendor "Nodejs"
 Node.js
Search vendor "Nodejs" for product "Node.js"
 >= 4.2.0 < 4.2.3
Search vendor "Nodejs" for product "Node.js" and version " >= 4.2.0 < 4.2.3"
lts
Affected
Nodejs
Search vendor "Nodejs"
 Node.js
Search vendor "Nodejs" for product "Node.js"
 >= 5.0.0 < 5.1.1
Search vendor "Nodejs" for product "Node.js" and version " >= 5.0.0 < 5.1.1"
-
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 12.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"
-
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 14.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"
esm
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 15.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04"
-
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 15.10
Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"
-
Affected