CVEvulnerability
CVE-2021-31870
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-04-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-190
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 configurations
• klibc project klibc (< 2.0.9)
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- http://www.openwall.com/lists/oss-security/2021/04/30/1 Mailing List, Release Notes, Third Party Advisory
- https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=292650f04c2b5348b4efbad61fb014ed09b4f3f2 Patch, Third Party Advisory
- https://kernel.org/pub/linux/libs/klibc/2.0/ Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html Mailing List, Third Party Advisory
- https://lists.zytor.com/archives/klibc/2021-April/004593.html Mailing List, Release Notes, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/04/30/1 Mailing List, Release Notes, Third Party Advisory
- https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=292650f04c2b5348b4efbad61fb014ed09b4f3f2 Patch, Third Party Advisory
- https://kernel.org/pub/linux/libs/klibc/2.0/ Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html Mailing List, Third Party Advisory
- https://lists.zytor.com/archives/klibc/2021-April/004593.html Mailing List, Release Notes, Third Party Advisory