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Improper Verification of Cryptographic Signature in golang.org/x/crypto

High severity GitHub Reviewed Published May 18, 2021 to the GitHub Advisory Database • Updated Feb 16, 2023

Package

gomod golang.org/x/crypto (Go)

Affected versions

< 0.0.0-20200220183623-bac4c82f6975

Patched versions

0.0.0-20200220183623-bac4c82f6975

Description

golang.org/x/crypto before v0.0.0-20200220183623-bac4c82f6975 for Go allows a panic during signature verification in the golang.org/x/crypto/ssh package. A client can attack an SSH server that accepts public keys. Also, a server can attack any SSH client.

References

Published by the National Vulnerability Database Feb 20, 2020
Reviewed May 17, 2021
Published to the GitHub Advisory Database May 18, 2021
Last updated Feb 16, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2020-9283

GHSA ID

GHSA-ffhg-7mh4-33c4

Source code

Checking history
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