CVE-2021-31870

Katalog CVE

CVSS 9.8 · Critical EPSS 2,1%

Kerentanan Integer Overflow or Wraparound pada klibc project klibc, debian linux. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

30 April 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

2,1% peluang dieksploitasi; lebih tinggi dari 80,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=292650f04c2b5348b4efbad61fb014ed09b4f3f2 patch · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2021/04/30/1 mailing list · release notes · advisory pihak ketiga
• https://kernel.org/pub/linux/libs/klibc/2.0/ release notes · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html mailing list · advisory pihak ketiga
• https://lists.zytor.com/archives/klibc/2021-April/004593.html mailing list · release notes · advisory pihak ketiga