CVE-2020-12656

Katalog CVE

CVSS 5.5 · Medium EPSS 0,33%

Kerentanan Missing Release of Memory after Effective Lifetime pada linux kernel, canonical ubuntu linux +1 lainnya. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5 implementation in the Linux kernel through 5.6.10 lacks certain domain_release calls, leading to a memory leak. Note: This was disputed with the assertion that the issue does not grant any access not already available. It is a problem that on unloading a specific kernel module some memory is leaked, but loading kernel modules is a privileged operation. A user could also write a kernel module to consume any amount of memory they like and load that replicating the effect of this bug

Rincian

Terbit di NVD

5 Mei 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-401: Missing Release of Memory after Effective Lifetime

EPSS (30 hari)

0,33% peluang dieksploitasi; lebih tinggi dari 24,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.kernel.org/show_bug.cgi?id=206651 issue tracking · advisory vendor
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html mailing list · advisory pihak ketiga
• https://usn.ubuntu.com/4483-1/ advisory pihak ketiga
• https://usn.ubuntu.com/4485-1/ advisory pihak ketiga