CVE-2021-3762: Github.com/quay/claircore Path Traversal Vulnerability
HIGHCVE-2021-3762 is a HIGH (CVSS 7.8) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Github.com/quay/claircore libraries in the Go ecosystem. The issue involves path traversal in claircore. Remediation is available by upgrading affected packages to version 0.4.8, 1.1.0, 0.5.5.
CVE-2021-3762 at a Glance
Security Impact
CVSS: 7.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
How to Fix CVE-2021-3762
To remediate this vulnerability, upgrade all affected Github.com/quay/claircore dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/quay/claircore to 0.4.8Upgrade github.com/quay/claircore to 1.1.0Upgrade github.com/quay/claircore to 0.5.5Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/quay/claircoreHow to Check if You Are Affected
To determine whether your application is affected by CVE-2021-3762, inspect your project dependencies for Github.com/quay/claircore:
inspect dependencies for github.com/quay/claircoreAnalyze the terminal output to locate any version of Github.com/quay/claircore in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.4.8), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Github.com/quay/claircore, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2021-3762 Affected Github.com/quay/claircore Versions
3 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/quay/claircore
|
Go |
< 0.4.8
|
0.4.8
|
|
github.com/quay/claircore
|
Go |
≥ 1.0.0
< 1.1.0
|
1.1.0
|
|
github.com/quay/claircore
|
Go |
≥ 0.5.0
< 0.5.5
|
0.5.5
|
References
Frequently Asked Questions
What is CVE-2021-3762?
Which Github.com/quay/claircore versions are affected?
What version fixes CVE-2021-3762?
Is github.com/quay/claircore affected?
What is the CVSS score of CVE-2021-3762?
What CWE is associated with CVE-2021-3762?
How can I check Go dependencies for CVE-2021-3762?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-mq47-6wwv-v79w",
"modified" : "2022-03-18T23:23:02Z",
"published" : "2022-03-04T00:00:16Z",
"aliases" : [ "CVE-2021-3762" ],
"summary" : "Path traversal in claircore",
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/quay/claircore"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "0.4.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/quay/claircore"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.0.0"
}, {
"fixed" : "1.1.0"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/quay/claircore"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0.5.0"
}, {
"fixed" : "0.5.5"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-3762"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/clair/pull/1379"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/clair/pull/1380"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/claircore/pull/478"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/claircore/commit/dff671c665141f126c072de8a744855d4916c9c7"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/claircore/commit/ed5f52aec1c82746725e9cc23e98316eab8be25a"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2000795"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/quay/claircore"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/claircore/commits/v0.4.8"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/claircore/commits/v0.5.5"
}, {
"type" : "WEB",
"url" : "https://github.com/quay/claircore/commits/v1.1.0"
}, {
"type" : "WEB",
"url" : "https://pkg.go.dev/vuln/GO-2022-0346"
}, {
"type" : "WEB",
"url" : "https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2022-03-18T23:23:02Z",
"nvd_published_at" : "2022-03-03T22:15:00Z"
}
}