Given this code is not in any released versions, no security releases have been issued.
Metrics
Affected Vendors & Products
Source | ID | Title |
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EUVD-2023-44252 | A missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions. The malicious client can request up to 4GB SFTP reads, causing allocation of up to 4GB buffers, which was not being checked for failure. This will likely crash the authenticated user's sftp server connection (if implemented as forking as recommended). For thread-based servers, this might also cause DoS for legitimate users. Given this code is not in any released versions, no security releases have been issued. |
Solution
No solution given by the vendor.
Workaround
The SFTP server implementation is based on callbacks so you can rewrite the sftp_channel_default_data_callback() to provide additional checks. [1] https://gitlab.com/libssh/libssh-mirror/-/blob/master/examples/sample_sftpserver.c#L330
Thu, 26 Sep 2024 20:30:00 +0000
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ssvc
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-09-26T20:04:43.251Z
Reserved: 2023-07-10T18:21:21.431Z
Link: CVE-2023-3603

Updated: 2024-08-02T07:01:56.718Z

Status : Modified
Published: 2023-07-21T20:15:16.587
Modified: 2024-11-21T08:17:38.737
Link: CVE-2023-3603


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