synced 6 MIN AGO
01 Record

CVE-2019-0816

A security feature bypass exists in Azure SSH Keypairs, due to a change in the provisioning logic for some Linux images that use cloud-init, aka 'Azure SSH Keypairs Security Feature Bypass

UnratedPUBLISHEDCNA: microsoft
CNA base scoreUnratedNo CNA CVSS vector

02 Description

A security feature bypass exists in Azure SSH Keypairs, due to a change in the provisioning logic for some Linux images that use cloud-init, aka 'Azure SSH Keypairs Security Feature Bypass

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
1.40% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 72.0% of scored records. A rank, not a probability.
NVD base score
5.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/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
2019-04-09 02:29Z7 YR AGO
Last updated
2024-08-04 17:58Z2 YR AGO
Reserved
2018-11-26
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-706Use of Incorrectly-Resolved Name or ReferenceClass
  • CWE-285Improper AuthorizationClass
Data version
5.1
Document digest
baeb86516b1b32a53b4da72660566015dea7e6a389955abcc70ec03ad9a9a5a7

05 Affected products

VendorProductVersionsPlatforms
MicrosoftUbuntu Server18.04-LTS—

06 References

07 Fixed in

Debian 12

  • cloud-init
    Fixed in 18.3-6

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • cloud-init
    Fixed in 18.3-6

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • cloud-init
    Fixed in 18.3-6

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • cloud-init
    Fixed in 18.5-45-g3554ffe8-0ubuntu1~16.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • cloud-init
    Fixed in 18.5-45-g3554ffe8-0ubuntu1~18.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.