Description
The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a "Client: Diffie-Hellman Key Exchange Init" packet.
CVSS Metrics
- Vector
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- network
- Access Cmplx
- medium
- Auth
- none
- Confidentiality
- none
- Integrity
- none
- Availability
- partial
- Weaknesses
- CWE-399
Metadata
- Primary Vendor
- LIBSSH
- Published
- 2/5/2013
- Last Modified
- 4/11/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
libssh : libsshlibssh : libsshlibssh : libsshlibssh : libsshlibssh : libsshlibssh : libsshlibssh : libssh
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