CVE-2021-31870
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-31870
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31870.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-31870
- Downstream
- Published
- 2021-04-30T06:15:07Z
- Modified
- 2025-08-09T19:01:26Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in klibc before 2.0.9. Multiplication in the calloc() function may result in an integer overflow and a subsequent heap buffer overflow.
- References
-
- http://www.openwall.com/lists/oss-security/2021/04/30/1
- https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=292650f04c2b5348b4efbad61fb014ed09b4f3f2
- https://kernel.org/pub/linux/libs/klibc/2.0/
- https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html
- https://lists.zytor.com/archives/klibc/2021-April/004593.html