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TI-2017-02852 Aliases CVE-2017-3736GHSA-72w7-9ghx-p5pg

Information disclosure in OpenSSL

Priority MEDIUM 41CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 22 fixed, 4 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.

Summary

There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.

Why it matters now

EPSS 0.10133 95th percentileScored 2026-11-07
Fix Partial Red Hat: 7 advisoriesRed Hat: 22 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenSSLOpenSSL1.1.0 - 1.1.0f; 1.0.2 - 1.0.2l—No fix listedCNA
  • OpenSSL VendorOpenSSL Affected 1.1.0 - 1.1.0f; 1.0.2 - 1.0.2l Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*1.0.2 to before 1.0.2m; 1.1.0 to before 1.1.0gVulnerableOpenSSL
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions 1.0.2 to before 1.0.2m; 1.1.0 to before 1.1.0g Vulnerable ·OpenSSL

Remediation

Red Hat 7 advisories

  • RHSA-2018:2713 Released 2018-09-17 · Red Hat rating Moderate
    java-1.8.0-ibm security update
    • Red Hat Satellite 5.8 (RHEL v.6) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el6_10
  • RHSA-2018:2575 Released 2018-08-28 · Red Hat rating Important
    java-1.8.0-ibm security update
    • Red Hat Enterprise Linux Desktop Supplementary (v. 6) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el6_10 +3
    • Red Hat Enterprise Linux HPC Node Supplementary (v. 6) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el6_10 +1
    • Red Hat Enterprise Linux Server Supplementary (v. 6) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el6_10 +3
    • Red Hat Enterprise Linux Workstation Supplementary (v. 6) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el6_10, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el6_10 +3
  • RHSA-2018:2568 Released 2018-08-27 · Red Hat rating Important
    java-1.8.0-ibm security update
    • Red Hat Enterprise Linux Client Supplementary (v. 7) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el7 +3
    • Red Hat Enterprise Linux ComputeNode Supplementary (v. 7) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el7 +1
    • Red Hat Enterprise Linux Server Supplementary (v. 7) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el7 +3
    • Red Hat Enterprise Linux Workstation Supplementary (v. 7) java-1.8.0-ibm-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-demo-1:1.8.0.5.20-1jpp.1.el7, java-1.8.0-ibm-devel-1:1.8.0.5.20-1jpp.1.el7 +3
Show 4 more Red Hat advisories
  • RHSA-2018:2186 Released 2018-07-12 · Red Hat rating Moderate
    Red Hat JBoss Core Services Apache HTTP Server 2.4.29 RHEL 6 security update
    • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apache-commons-daemon-1.1.0-1.redhat_2.1.jbcs.el6, jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-1.redhat_2.jbcs.el6, jbcs-httpd24-apr-1.6.3-14.jbcs.el6 +34
  • RHSA-2018:2185 Released 2018-07-12 · Red Hat rating Moderate
    Red Hat JBoss Core Services Apache HTTP Server 2.4.29 RHEL 7 security update
    • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apache-commons-daemon-1.1.0-1.redhat_2.1.jbcs.el7, jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-1.redhat_2.jbcs.el7, jbcs-httpd24-apr-1.6.3-14.jbcs.el7 +34
  • RHSA-2018:2187 Released 2018-07-12 · Red Hat rating Moderate
    Red Hat JBoss Core Services Apache HTTP Server 2.4.29 security update
    • Red Hat JBoss Core Services
  • RHSA-2018:0998 Released 2018-04-10 · Red Hat rating Moderate
    openssl security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) openssl-1:1.0.2k-12.el7, openssl-libs-1:1.0.2k-12.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) openssl-devel-1:1.0.2k-12.el7, openssl-perl-1:1.0.2k-12.el7, openssl-static-1:1.0.2k-12.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) openssl-1:1.0.2k-12.el7, openssl-libs-1:1.0.2k-12.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssl-devel-1:1.0.2k-12.el7, openssl-perl-1:1.0.2k-12.el7, openssl-static-1:1.0.2k-12.el7
    • Red Hat Enterprise Linux Server (v. 7) openssl-1:1.0.2k-12.el7, openssl-devel-1:1.0.2k-12.el7, openssl-devel-1:1.0.2k-12.el7.ppc +2
    • Red Hat Enterprise Linux Server Optional (v. 7) openssl-perl-1:1.0.2k-12.el7, openssl-static-1:1.0.2k-12.el7, openssl-static-1:1.0.2k-12.el7.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) openssl-1:1.0.2k-12.el7, openssl-devel-1:1.0.2k-12.el7, openssl-libs-1:1.0.2k-12.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) openssl-perl-1:1.0.2k-12.el7, openssl-static-1:1.0.2k-12.el7
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) openssl-1:1.0.2k-12.el7, openssl-devel-1:1.0.2k-12.el7, openssl-libs-1:1.0.2k-12.el7
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) openssl-perl-1:1.0.2k-12.el7, openssl-static-1:1.0.2k-12.el7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7Affected—
Red Hat Enterprise Virtualization 3Affected—
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix yet
Red Hat JBoss Enterprise Web Server 2AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux Client Supplementary (v. 7)Fixed RHSA-2018:2568
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux ComputeNode Supplementary (v. 7)Fixed RHSA-2018:2568
Red Hat Enterprise Linux Desktop Supplementary (v. 6)Fixed RHSA-2018:2575
Red Hat Enterprise Linux HPC Node Supplementary (v. 6)Fixed RHSA-2018:2575
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux Server Supplementary (v. 6)Fixed RHSA-2018:2575
Red Hat Enterprise Linux Server Supplementary (v. 7)Fixed RHSA-2018:2568
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux Workstation Supplementary (v. 6)Fixed RHSA-2018:2575
Red Hat Enterprise Linux Workstation Supplementary (v. 7)Fixed RHSA-2018:2568
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:0998
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:0998
Red Hat JBoss Core ServicesFixed RHSA-2018:2187
Red Hat JBoss Core Services on RHEL 6 ServerFixed RHSA-2018:2186
Red Hat JBoss Core Services on RHEL 7 ServerFixed RHSA-2018:2185
Red Hat Satellite 5.8 (RHEL v.6)Fixed RHSA-2018:2713
Not affected: 5 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat JBoss Enterprise Application Platform 5
  • Red Hat JBoss Web Server 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-3736
  2. 2026-10-03 Alias added: GHSA-72w7-9ghx-p5pg

References

Patch 4

Advisory 18

Other 3

  • TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
  • TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
  • TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
See all 312 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences