CVE-2017-3736

Impact:
Moderate
Public Date:
2017-11-02
CWE:
CWE-682
Bugzilla:
1509169: CVE-2017-3736 openssl: bn_sqrx8x_internal carry bug on x86_64

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2017-3736 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 5.9
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact None
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat JBoss Core Services 1 RHSA-2018:2187 2018-07-12
Red Hat JBoss Core Services on RHEL 6 Server RHSA-2018:2186 2018-07-12
Red Hat Enterprise Linux Supplementary (v. 6) (java-1.8.0-ibm) RHSA-2018:2575 2018-08-28
Red Hat Enterprise Linux 7 (openssl) RHSA-2018:0998 2018-04-10
Red Hat Enterprise Linux Supplementary (v. 7) (java-1.8.0-ibm) RHSA-2018:2568 2018-08-27
Red Hat JBoss Core Services on RHEL 7 Server RHSA-2018:2185 2018-07-12
Red Hat Satellite 5.8 (RHEL v.6) (java-1.8.0-ibm) RHSA-2018:2713 2018-09-17

Affected Packages State

Platform Package State
Red Hat JBoss Web Server 3 openssl Not affected
Red Hat JBoss EWS 2 openssl Will not fix
Red Hat JBoss EAP 6 openssl Will not fix
Red Hat JBoss EAP 5 openssl Not affected
Red Hat Enterprise Linux 7 openssl098e Not affected
Red Hat Enterprise Linux 7 OVMF Will not fix
Red Hat Enterprise Linux 6 openssl Not affected
Red Hat Enterprise Linux 6 openssl098e Not affected
Red Hat Enterprise Linux 5 openssl Not affected
Red Hat Enterprise Linux 5 openssl097a Not affected
RHEV Manager 3 mingw-virt-viewer Will not fix

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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