CVE-2021-34558

Public on 2021-08-04
Modified on 2021-09-08
Description
A flaw was found in golang. A panic can be triggered by an attacker in a privileged network position without access to the server certificate's private key, as long as a trusted ECDSA or Ed25519 certificate for the server exists (or can be issued), or the client is configured with Config.InsecureSkipVerify. Clients that disable all TLS_RSA cipher suites (that is, TLS 1.0-1.2 cipher suites without ECDHE), as well as TLS 1.3-only clients, are unaffected.
Severity
Medium
CVSS v3 Base Score
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 golang 2021-08-04 20:32 ALAS2-2021-1694
Amazon Linux 1 golang 2021-09-02 22:54 ALAS-2021-1527

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD CVSSv2 2.6 AV:N/AC:H/Au:N/C:N/I:N/A:P
NVD CVSSv3 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H