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Status published
Critical
CVE-2021-31870
An issue was discovered in klibc before 2.0.9. Multiplication in...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://kernel.org/pub/linux/libs/klibc/2.0/
- https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=292650f04c2b5348b4efbad61fb014ed09b4f3f2
- https://lists.zytor.com/archives/klibc/2021-April/004593.html
- http://www.openwall.com/lists/oss-security/2021/04/30/1
- https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html
More from klibc project
View All →Affected Vendor
klibc project
View all reports →Affected Software
klibc, debian linux
Vulnerable Versions:
0, 9.0
Timeline
Official Publish:
April 30th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.