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.
References
Link | Resource |
---|---|
https://access.redhat.com/security/cve/CVE-2023-3603 | Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=2221791 | Issue Tracking Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2023-07-21T19:09:44.083Z
Updated: 2024-01-23T00:58:36.996Z
Reserved: 2023-07-10T18:21:21.431Z
Link: CVE-2023-3603
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-07-21T20:15:16.587
Modified: 2024-05-23T17:56:49.850
Link: CVE-2023-3603
JSON object: View
Redhat Information
No data.
CWE