CVE-2017-3736
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…
- Published
- Updated
- Reserved
- Assigned by
- openssl
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 10.1% · top 4.3% of all CVEs (3 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
- carry-propagating bug
- CWE-200 (opens in a new tab)All about CWE-200 and its CVEs
Affected products
OpenSSL Software Foundation · OpenSSL
- affected 1.1.0 - 1.1.0f
- affected 1.0.2 - 1.0.2l
References (27)
- https://security.netapp.com/advisory/ntap-20171107-0002/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:2185 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://github.com/openssl/openssl/commit/4443cf7aa0099e5ce615c18cee249fff77fb0871 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2018:2186 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:2713 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4018 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- GLSA-201712-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2018:0998 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:2575 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.tenable.com/security/tns-2017-15 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 101666 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2018:2568 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.openssl.org/news/secadv/20171102.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4017 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://www.tenable.com/security/tns-2017-14 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FreeBSD-SA-17:11 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- 1039727 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:2187 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://security.netapp.com/advisory/ntap-20180117-0002/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2017-3736)Record last updated .