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OpenStack Glance Signature Verification Bypass

Moderate severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Nov 21, 2024

Package

pip glance (pip)

Affected versions

<= 11.0.0

Patched versions

None

Description

The image signature algorithm in OpenStack Glance 11.0.0 allows remote attackers to bypass the signature verification process via a crafted image, which triggers an MD5 collision.

References

Published by the National Vulnerability Database Mar 29, 2017
Published to the GitHub Advisory Database May 17, 2022
Reviewed Aug 3, 2023
Last updated Nov 21, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS score

0.290%
(70th percentile)

Weaknesses

CVE ID

CVE-2015-8234

GHSA ID

GHSA-wmhw-fvg9-87fc

Source code

No known source code
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