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Path traversal in claircore

High severity GitHub Reviewed Published Mar 4, 2022 to the GitHub Advisory Database • Updated Feb 6, 2023

Package

gomod github.com/quay/claircore (Go)

Affected versions

< 0.4.8
>= 1.0.0, < 1.1.0
>= 0.5.0, < 0.5.5

Patched versions

0.4.8
1.1.0
0.5.5

Description

A directory traversal vulnerability was found in the ClairCore engine of Clair. An attacker can exploit this by supplying a crafted container image which, when scanned by Clair, allows for arbitrary file write on the filesystem, potentially allowing for remote code execution.

References

Published by the National Vulnerability Database Mar 3, 2022
Published to the GitHub Advisory Database Mar 4, 2022
Reviewed Mar 18, 2022
Last updated Feb 6, 2023

Severity

High

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
High
Integrity
High
Availability
High

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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

11.499%
(95th percentile)

Weaknesses

CVE ID

CVE-2021-3762

GHSA ID

GHSA-mq47-6wwv-v79w

Source code

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