CVE-2019-15791

Katalog CVE

CVSS 7.8 · High EPSS 1,3%

Kerentanan Operation on a Resource after Expiration or Release pada linux kernel, canonical ubuntu linux. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, which then puts a reference to that file, leading to a refcount underflow.

Rincian

Terbit di NVD

24 April 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-672: Operation on a Resource after Expiration or Release
CWE-191: Integer Underflow (Wrap or Wraparound)

EPSS (30 hari)

1,3% peluang dieksploitasi; lebih tinggi dari 70,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/eoan/commit/?id=601a64857b3d7040ca15c39c929... mailing list · patch · advisory pihak ketiga
• https://usn.ubuntu.com/usn/usn-4183-1 advisory pihak ketiga
• https://usn.ubuntu.com/usn/usn-4184-1 advisory pihak ketiga