CVE-2021-3762

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 3.91% Top 15%
Third-Party Advisory redhat.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory vulmon.com
Affected: n/a quay/claircore
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2000795 issue tracking third party advisory patch
https://github.com/quay/claircore/pull/478 third party advisory patch
https://github.com/quay/clair/pull/1379 third party advisory patch
https://github.com/quay/clair/pull/1380 third party advisory patch
https://github.com/quay/claircore/commit/691f2023a1720a0579e688b69a2f4bfe1f4b7821 third party advisory patch
https://vulmon.com/exploitdetails?qidtp=maillist_oss_security&qid=d19fce9ede06e13dfb5630ece7f14f83 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-3762?
CVE-2021-3762 has been scored as a critical severity vulnerability.
How to fix CVE-2021-3762?
To fix CVE-2021-3762, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3762 being actively exploited in the wild?
It is possible that CVE-2021-3762 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3762?
CVE-2021-3762 affects n/a quay/claircore.
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