CVE-2021-3762
Last modified
CVE-2021-3762 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 4.51% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Clair | >= 0.4.6, < 0.4.8 |
| Redhat | Clair | >= 0.5.3, < 0.5.5 |
| Redhat | Quay | 3.5.6 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2000795Issue Tracking, Patch, Third Party Advisory
- https://github.com/quay/clair/pull/1379Patch, Third Party Advisory
- https://github.com/quay/clair/pull/1380Patch, Third Party Advisory
- https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821Patch, Third Party Advisory
- https://github.com/quay/claircore/pull/478Patch, Third Party Advisory
- https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83Exploit, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2000795Issue Tracking, Patch, Third Party Advisory
- https://github.com/quay/clair/pull/1379Patch, Third Party Advisory
- https://github.com/quay/clair/pull/1380Patch, Third Party Advisory
- https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821Patch, Third Party Advisory
- https://github.com/quay/claircore/pull/478Patch, Third Party Advisory
- https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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