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alpinelinuxAlpine Linux Development TeamALPINE:CVE-2021-40528
HistorySep 06, 2021 - 7:15 p.m.

CVE-2021-40528

2021-09-0619:15:00
Alpine Linux Development Team
security.alpinelinux.org
10

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

2.6 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

54.6%

The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver’s public key, the generator defined by the receiver’s public key, and the sender’s ephemeral exponents can lead to a cross-configuration attack against OpenPGP.

OSVersionArchitecturePackageVersionFilename
Alpine3.11-mainnoarchlibgcrypt< 1.8.8-r1UNKNOWN
Alpine3.12-mainnoarchlibgcrypt< 1.8.8-r1UNKNOWN
Alpine3.13-mainnoarchlibgcrypt< 1.8.8-r1UNKNOWN

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

2.6 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

54.6%