A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| gnu | gnutls | - | - |
| redhat | enterprise_linux | - | - |
| redhat | enterprise_linux | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
10
Affected Products
18
References
gnu / gnutls
| - |
| debian | debian_linux | - | - |
| fedoraproject | fedora | - | - |
| fedoraproject | fedora | - | - |
| fedoraproject | fedora | - | - |
| netapp | active_iq_unified_manager | - | - |
| netapp | converged_systems_advisor_agent | - | - |
| netapp | ontap_select_deploy_administration_utility | - | - |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploitability
Impact