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01 Record

CVE-2020-8911

CBC padding oracle in AWS S3 Crypto SDK for GoLang

MediumPUBLISHEDCNA: Google
CNA base score5.6 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

02 Description

CBC padding oracle in AWS S3 Crypto SDK for GoLang

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.34% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 27.9% of scored records. A rank, not a probability.
NVD base score
5.6 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-08-11 19:20Z6 YR AGO
Last updated
2024-08-04 10:12Z2 YR AGO
Reserved
2020-02-12
Assigning CNA
Google
Record state
PUBLISHED
Severity
Medium (CVSS 5.6)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Weaknesses
  • CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass
Data version
5.1
Document digest
bda208a8e62be2f90681cf6a42a03720a1d041cfd56aaf4ffa29d6ce0e268fd3

05 Affected products

VendorProductVersionsPlatforms
Google LLCAWS S3 Crypto SDK for GoLangstable to V1—

06 References