Description
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
CVSS Metrics
- Vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- Attack Vector
- network
- Complexity
- high
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- low
- Availability
- none
- Weaknesses
- CWE-310
Metadata
- Primary Vendor
- OPENSSL
- Published
- 5/21/2015
- Last Modified
- 4/12/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
openssl : opensslopenssl : opensslcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxopenssl : opensslhp : hp-uxibm : content_manageroracle : jrockitdebian : debian_linuxdebian : debian_linuxoracle : jdkoracle : jdkoracle : jdkoracle : jdkoracle : jdkoracle : jreoracle : jreoracle : jreoracle : jreoracle : jresuse : linux_enterprise_desktopsuse : linux_enterprise_serversuse : linux_enterprise_software_development_kitsuse : suse_linux_enterprise_serverapple : iphone_osapple : mac_os_xmozilla : network_security_servicesoracle : sparc-opl_service_processorapple : safarigoogle : chromemicrosoft : internet_explorermozilla : firefoxopera : opera_browsermozilla : firefoxmozilla : firefoxmozilla : firefox_esrmozilla : seamonkeymozilla : thunderbirdmozilla : thunderbirdmozilla : firefox_os
AI-Powered Remediation
Generate remediation guidance or a C-suite brief for this vulnerability.