CVE-2021-31873
9.8
CRITICAL
CVSS 3.1
EPSS 0.89%
Description
An issue was discovered in klibc before 2.0.9. Additions in the malloc() function may result in an integer overflow and a subsequent heap buffer overflow.
How to fix CVE-2021-31873
To remediate CVE-2021-31873, upgrade the affected package to a fixed version below.
- Debian/klibc—upgrade to 2.0.8-6 or later
Is CVE-2021-31873 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.0.8-6
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 |