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CVE

CVE-2021-3762

A directory traversal vulnerability was found in the ClairCore engine of Clair. An attacker can exploit this by supplyin

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.

CRITICAL · CVSS 9.8 EPSS 0.08656
Act now
  • EPSS percentile: top 7% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
▤

Affected Products & Versions

3
redhat clair>= 0.4.6 and < 0.4.8
redhat clair>= 0.5.3 and < 0.5.5
redhat quayall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/quay/claircore HIGH fixed in 0.4.8
⚠

Public Exploits & PoCs

1
pocvulmon.com · exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede...vulmon.com
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 Mar 2022 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

1
rhsaRHSA-2021:3665Critical
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=2000795Issue TrackingPatchThird Party Advisory
https://github.com/quay/clair/pull/1379PatchThird Party Advisory
https://github.com/quay/clair/pull/1380PatchThird Party Advisory
https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821PatchThird Party Advisory
https://github.com/quay/claircore/pull/478PatchThird Party Advisory
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