CVE-2021-3762

moderate-risk
Published 2022-03-03

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.

Do I need to act?

~
8.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 691f2023a1720a0579e688b69a2f4bfe1f4b7821, 691f2023a1720a0579e688b69a2f4bfe1f4b7821
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Clair

Affected Vendors

Redhat

References (12)

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2000795
Patch https://github.com/quay/clair/pull/1379
Patch https://github.com/quay/clair/pull/1380
Patch https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b782...
Patch https://github.com/quay/claircore/pull/478
Exploit https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e1...
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2000795
Patch https://github.com/quay/clair/pull/1379
Patch https://github.com/quay/clair/pull/1380
Patch https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b782...
Patch https://github.com/quay/claircore/pull/478
Exploit https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e1...
49
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 10/34 · Low
Exposure 7/34 · Low