3.1
Faible
CVE-2023-3603 A missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions
Description
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.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| libssh | Versions non publiées | |
| Red Hat Enterprise Linux 7 | Versions non publiées | |
| Red Hat Enterprise Linux 8 | Versions non publiées | |
| Red Hat Enterprise Linux 9 | Versions non publiées | |
| Extra Packages for Enterprise Linux 7 | Versions non publiées | |
| Fedora | Versions non publiées |
Références
- access.redhat.com access.redhat.com
- RHBZ#2221791 bugzilla.redhat.com
Chronologie
- Publiée
- Dernière modification
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