Description
libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
CVSS Metrics
- Vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- network
- Complexity
- high
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- high
- Integrity
- none
- Availability
- none
- Weaknesses
- CWE-200
Metadata
- Primary Vendor
- REDHAT
- Published
- 4/13/2016
- Last Modified
- 4/12/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
redhat : enterprise_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxlibssh : libsshfedoraproject : fedorafedoraproject : fedoradebian : debian_linuxdebian : debian_linux
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