Vulnerability Report

CVE-2017-3738

Title: Nodejs Node.Js Information Disclosure

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2017-3738.

CWE Category CWE-200

Published Date Dec 07, 2017

Modified Date May 13, 2026

Exploit Status Not Found

Score 5.9 CVSS v3.1

Exploit Probability (EPSS)

15.51%

Vulnerability Summary

CVE-2017-3738: There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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 DH1024 are considered just feasible, 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 significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the low severity of this issue we are not issuing a new release of OpenSSL 1.1.0 at this time. The fix will be included in OpenSSL 1.1.0h when it becomes available. The fix is also available in commit e502cc86d in the OpenSSL git repository.

Impacted Vendors

Reference Links

http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/102118 http://www.securitytracker.com/id/1039978 https://access.redhat.com/errata/RHSA-2018:0998 https://access.redhat.com/errata/RHSA-2018:2185 https://access.redhat.com/errata/RHSA-2018:2186 https://access.redhat.com/errata/RHSA-2018:2187 https://github.com/openssl/openssl/commit/e502cc86df9dafded1694fceb3228ee34d11c11a https://nodejs.org/en/blog/vulnerability/december-2017-security-releases/ https://security.FreeBSD.org/advisories/FreeBSD-SA-17:12.openssl.asc https://security.gentoo.org/glsa/201712-03 https://security.netapp.com/advisory/ntap-20171208-0001/ https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us https://www.debian.org/security/2017/dsa-4065 https://www.debian.org/security/2018/dsa-4157 https://www.openssl.org/news/secadv/20171207.txt https://www.openssl.org/news/secadv/20180327.txt https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html https://www.tenable.com/security/tns-2017-16 https://www.tenable.com/security/tns-2018-04 https://www.tenable.com/security/tns-2018-06 https://www.tenable.com/security/tns-2018-07 http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/102118 http://www.securitytracker.com/id/1039978 https://access.redhat.com/errata/RHSA-2018:0998 https://access.redhat.com/errata/RHSA-2018:2185 https://access.redhat.com/errata/RHSA-2018:2186 https://access.redhat.com/errata/RHSA-2018:2187 https://github.com/openssl/openssl/commit/e502cc86df9dafded1694fceb3228ee34d11c11a https://nodejs.org/en/blog/vulnerability/december-2017-security-releases/ https://security.FreeBSD.org/advisories/FreeBSD-SA-17:12.openssl.asc https://security.gentoo.org/glsa/201712-03 https://security.netapp.com/advisory/ntap-20171208-0001/ https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us https://www.debian.org/security/2017/dsa-4065 https://www.debian.org/security/2018/dsa-4157 https://www.openssl.org/news/secadv/20171207.txt https://www.openssl.org/news/secadv/20180327.txt https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html https://www.tenable.com/security/tns-2017-16 https://www.tenable.com/security/tns-2018-04 https://www.tenable.com/security/tns-2018-06 https://www.tenable.com/security/tns-2018-07

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.9

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

4.3

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns