CVE-2021-31870
CRITICAL9.8EPSS 1.3%klibc - security update
Published: 4/30/2021Modified: 3/9/2026
Also known as:DEBIAN-CVE-2021-31870DEBIAN-CVE-2021-31871DEBIAN-CVE-2021-31872DEBIAN-CVE-2021-31873DLA-2695-1
Description
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.
Affected packages (2)
- Debian/klibcfrom 0, < 2.0.8-6
- Debian/klibcfrom 0, < 2.0.4-9+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |