CVE-2023-3603
Processing sftp server read may cause null dereference
Résumé
Processing sftp server read may cause null dereference
Description d'origine
La description telle que publiée par la source (souvent en anglais).
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.
Références
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- report bugzilla.redhat.com
- web access.redhat.com
- web packages.fedoraproject.org