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nvd[email protected]NVD:CVE-2023-0361
HistoryFeb 15, 2023 - 6:15 p.m.

CVE-2023-0361

2023-02-1518:15:11
CWE-203
web.nvd.nist.gov
8
timing side-channel
rsa
gnutls
bleichenbacher style attack
decryption
clientkeyexchange
application data

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

57.1%

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.

Affected configurations

Nvd
Node
gnugnutlsMatch3.6.8-11.el8_2
Node
redhatenterprise_linuxMatch8.0
OR
redhatenterprise_linuxMatch9.0
Node
debiandebian_linuxMatch10.0
Node
fedoraprojectfedoraMatch36
OR
fedoraprojectfedoraMatch37
OR
fedoraprojectfedoraMatch38
Node
netappactive_iq_unified_managerMatch-vmware_vsphere
OR
netappconverged_systems_advisor_agentMatch-
OR
netappontap_select_deploy_administration_utilityMatch-
VendorProductVersionCPE
gnugnutls3.6.8-11.el8_2cpe:2.3:a:gnu:gnutls:3.6.8-11.el8_2:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhatenterprise_linux9.0cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
fedoraprojectfedora36cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
fedoraprojectfedora37cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
fedoraprojectfedora38cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
netappactive_iq_unified_manager-cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
netappconverged_systems_advisor_agent-cpe:2.3:a:netapp:converged_systems_advisor_agent:-:*:*:*:*:*:*:*
netappontap_select_deploy_administration_utility-cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

57.1%