Integer overflow in Linuxfoundation Runc
CVE-2021-43784
runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc, netlink is used internally as a serialization system for specifying the relevant container configuration to the `C` portion of the…
Vulnerability class: Integer Overflow
EPSS: 0.017 (74.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L.
Affected products
- Linuxfoundation Runc
- Opencontainers Runc — versions < 1.0.3
- Debian Debian_linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Exploit, Third Party Advisory)
- security-advisories@github.com (Vendor Advisory, mailing-list)
- security-advisories@github.com (mailing-list)
Frequently asked questions
- What is CVE-2021-43784?
- CVE-2021-43784 is a medium-severity vulnerability in Linuxfoundation Runc, classified under Integer Overflow or Wraparound. CVSS score: 6.0/10. Published 2021-12-06.
- How severe is CVE-2021-43784?
- Medium severity. CVSS v3 base score is 6.0 out of 10.
- Is CVE-2021-43784 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.