Path Traversal in Red Hat Clair
CVE-2021-3762
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.048 (91.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.048 · newest: 0.048 · change: 0.000
Affected products
- Red Hat Clair
- Red Hat Quay — versions 3.5.6
- Quay/claircore — versions Affects v0.4.6 and higher, v0.5.3 and higher | Fixedin claircore v0.4.8, v0.5.5.
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/quay/claircore/pull/478 (Patch, Third Party Advisory)
- github.com/quay/clair/pull/1379 (Patch, Third Party Advisory)
- github.com/quay/clair/pull/1380 (Patch, Third Party Advisory)
- github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821 (Patch, Third Party Advisory)
- vulmon.com/exploitdetails (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3762?
- CVE-2021-3762 is a critical-severity vulnerability in Red Hat Clair, classified under Path Traversal. CVSS score: 9.8/10. Published 2022-03-03.
- How severe is CVE-2021-3762?
- Critical severity. CVSS v3 base score is 9.8 out of 10.