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cve[email protected]CVE-2021-33560
HistoryJun 08, 2021 - 11:15 a.m.

CVE-2021-33560

2021-06-0811:15:07
CWE-203
[email protected]
web.nvd.nist.gov
362
15
libgcrypt
cve-2021-33560
elgamal encryption
exponent blinding
side-channel attack
openpgp
nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

61.1%

JSON

Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.

Affected configurations

NVD
Node
gnupglibgcryptRange<1.8.8
OR
gnupglibgcryptRange1.9.0–1.9.3
Node
debiandebian_linuxMatch9.0
Node
fedoraprojectfedoraMatch33
OR
fedoraprojectfedoraMatch34
Node
oraclecommunications_cloud_native_core_binding_support_functionMatch1.11.0
OR
oraclecommunications_cloud_native_core_network_function_cloud_native_environmentMatch1.9.0
OR
oraclecommunications_cloud_native_core_network_function_cloud_native_environmentMatch1.10.0
OR
oraclecommunications_cloud_native_core_network_repository_functionMatch1.14.0
OR
oraclecommunications_cloud_native_core_network_repository_functionMatch1.15.0
OR
oraclecommunications_cloud_native_core_network_repository_functionMatch1.15.1
OR
oraclecommunications_cloud_native_core_network_slice_selection_functionMatch1.8.0
OR
oraclecommunications_cloud_native_core_service_communication_proxyMatch1.15.0

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5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

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CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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7.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

61.1%

JSON
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