Nixpkgs security tracker
5.3 MEDIUM
- CVSS version: 3.1
- Attack vector (AV):
- Attack complexity (AC):
- Privileges required (PR):
- User interaction (UI):
- Scope (S):
- Confidentiality impact (C):
- Integrity impact (I):
- Availability impact (A):
libssh SFTP Extension Name sftp.c sftp_extensions_get_data out-of-bounds
A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftp_extensions_get_name/sftp_extensions_get_data of the file src/sftp.c of the component SFTP Extension Name Handler. Executing a manipulation of the argument idx can lead to out-of-bounds read. The attack may be performed from remote. Upgrading to version 0.11.4 and 0.12.0 is sufficient to resolve this issue. This patch is called 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60. You should upgrade the affected component.
References
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VDB-349709 | libssh SFTP Extension Name sftp.c sftp_extensions_get_data out-of-bounds vdb-entrytechnical-description
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Submit #767120 | libssh.org libssh libssh < 0.11.4; < 0.12.0 Out-of-Bounds Read third-party-advisory
Affected products
- ==0.11.0
- ==0.11.4
- ==0.11.3
- ==0.12.0
- ==0.11.2
- ==0.11.1
Matching in nixpkgs
pkgs.libssh
SSH client library
pkgs.libssh2
Client-side C library implementing the SSH2 protocol
pkgs.haskellPackages.libssh
libssh bindings
pkgs.haskellPackages.libssh2
FFI bindings to libssh2 SSH2 client library (http://libssh2.org/)
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nixos-unstable 0.2.0.9-unstable-2025-04-03
- nixpkgs-unstable 0.2.0.9-unstable-2025-04-03
- nixos-unstable-small 0.2.0.9-unstable-2025-04-03
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nixos-25.11 0.2.0.9-unstable-2025-04-03
- nixos-25.11-small 0.2.0.9-unstable-2025-04-03
- nixpkgs-25.11-darwin 0.2.0.9-unstable-2025-04-03
pkgs.haskellPackages.libssh2-conduit
Conduit wrappers for libssh2 FFI bindings (see libssh2 package)
pkgs.python312Packages.ansible-pylibssh
Python bindings to client functionality of libssh specific to Ansible use case
pkgs.python313Packages.ansible-pylibssh
Python bindings to client functionality of libssh specific to Ansible use case
pkgs.python314Packages.ansible-pylibssh
Python bindings to client functionality of libssh specific to Ansible use case
Package maintainers
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@svanderburg Sander van der Burg <s.vanderburg@tudelft.nl>
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@SuperSandro2000 Sandro Jäckel <sandro.jaeckel@gmail.com>
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@geluk Johan Geluk <johan+nix@geluk.io>
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@mpscholten Marc Scholten <marc@digitallyinduced.com>
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@wfdewith Wim de With <wf@dewith.io>