5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.244 Low
EPSS
Percentile
96.6%
Severity: Medium
Date : 2020-03-08
CVE-ID : CVE-2020-9283
Package : golang-golang-x-crypto
Type : denial of service
Remote : Yes
Link : https://security.archlinux.org/AVG-1109
The package golang-golang-x-crypto before version 0.0.20200303-1 is
vulnerable to denial of service.
Upgrade to 0.0.20200303-1.
The problem has been fixed upstream in version 0.0.20200303.
None.
A security issue has been found in golang.org/x/crypto before
v0.0.0-20200220183623-bac4c82f6975. An attacker can craft an ssh-
ed25519 or sk-ssh-ed25519 at openssh.com public key, such that the library
will panic when trying to verify a signature with it. Clients can
deliver such a public key and signature to any golang.org/x/crypto/ssh
server with a PublicKeyCallback, and servers can deliver them to any
golang.org/x/crypto/ssh client.
A remote unauthenticated attacker can serve a malicious SSH public key
and crash the service.
https://groups.google.com/forum/#!topic/golang-announce/3L45YRc91SY
https://github.com/golang/crypto/commit/bac4c82f69751a6dd76e702d54b3ceb88adab236
https://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html
https://security.archlinux.org/CVE-2020-9283
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ArchLinux | any | any | golang-golang-x-crypto | <ย 0.0.20200303-1 | UNKNOWN |
github.com/golang/crypto/commit/bac4c82f69751a6dd76e702d54b3ceb88adab236
golang.org/x/crypto
golang.org/x/crypto/ssh
golang.org/x/crypto/ssh
groups.google.com/forum/#!topic/golang-announce/3L45YRc91SY
openssh.com
packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html
security.archlinux.org/AVG-1109
security.archlinux.org/CVE-2020-9283
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.244 Low
EPSS
Percentile
96.6%