CVE - CVE-2018-0732

CVE-ID
CVE-2018-0732	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[debian-lts-announce] 20180728 [SECURITY] [DLA 1449-1] openssl security update URL:https://lists.debian.org/debian-lts-announce/2018/07/msg00043.html CONFIRM:https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=3984ef0b72831da8b3ece4745cac4f8575b19098 CONFIRM:https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ea7abeeabf92b7aca160bdd0208636d4da69f4f4 CONFIRM:https://www.openssl.org/news/secadv/20180612.txt CONFIRM:https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ CONFIRM:https://www.tenable.com/security/tns-2018-12 CONFIRM:https://securityadvisories.paloaltonetworks.com/Home/Detail/133 CONFIRM:http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html REDHAT:RHSA-2018:2552 URL:https://access.redhat.com/errata/RHSA-2018:2552 REDHAT:RHSA-2018:2553 URL:https://access.redhat.com/errata/RHSA-2018:2553 UBUNTU:USN-3692-1 URL:https://usn.ubuntu.com/3692-1/ UBUNTU:USN-3692-2 URL:https://usn.ubuntu.com/3692-2/ BID:104442 URL:http://www.securityfocus.com/bid/104442 SECTRACK:1041090 URL:http://www.securitytracker.com/id/1041090
Assigning CNA
OpenSSL Software Foundation
Date Entry Created
20171130	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20171130)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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