CVE-2020-12826

Katalog CVE

CVSS 5.3 · Medium EPSS 0,71%

Kerentanan Integer Overflow or Wraparound pada linux kernel, canonical ubuntu linux +2 lainnya. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat.

Rincian

Terbit di NVD

12 Mei 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

0,71% peluang dieksploitasi; lebih tinggi dari 52,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=1822077 issue tracking · patch · advisory pihak ketiga
• https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef patch · advisory pihak ketiga
• https://lists.openwall.net/linux-kernel/2020/03/24/1803 exploit · mailing list · patch · advisory pihak ketiga
• https://www.openwall.com/lists/kernel-hardening/2020/03/25/1 exploit · mailing list · patch · advisory pihak ketiga
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5 release notes · advisory pihak ketiga
• https://usn.ubuntu.com/4367-1/ advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
• https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
• https://security.netapp.com/advisory/ntap-20200608-0001/
• https://usn.ubuntu.com/4369-1/
• https://usn.ubuntu.com/4391-1/