Upstream information

CVE-2020-8912 at MITRE

Description

A vulnerability in the in-band key negotiation exists in the AWS S3 Crypto SDK for GoLang versions prior to V2. An attacker with write access to the targeted bucket can change the encryption algorithm of an object in the bucket, which can then allow them to change AES-GCM to AES-CTR. Using this in combination with a decryption oracle can reveal the authentication key used by AES-GCM as decrypting the GMAC tag leaves the authentication key recoverable as an algebraic equation. It is recommended to update your SDK to V2 or later, and re-encrypt your files.

SUSE information

Overall state of this security issue: Resolved

This issue is currently not rated by SUSE as it is not affecting the SUSE Enterprise products.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
Vector AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database
Base Score 2.5
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • govulncheck-vulndb >= 0.0.20241213T205935-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-14599

SUSE Timeline for this CVE

CVE page created: Wed Aug 12 00:33:16 2020
CVE page last modified: Thu Dec 19 19:37:13 2024