CVE-2022-26356

Katalog CVE

CVSS 5.6 · Medium EPSS 0,24%

Kerentanan Improper Locking pada xen, debian linux +1 lainnya. Skor CVSS 3.1 5.6 (Medium) menurut NVD.

Deskripsi (NVD)

Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.

Rincian

Terbit di NVD

5 April 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-667: Improper Locking

EPSS (30 hari)

0,24% peluang dieksploitasi; lebih tinggi dari 14,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://www.openwall.com/lists/oss-security/2022/04/05/1 mailing list · patch · advisory pihak ketiga
• http://xenbits.xen.org/xsa/advisory-397.html patch · advisory pihak ketiga
• https://www.debian.org/security/2022/dsa-5117 advisory pihak ketiga
• https://xenbits.xenproject.org/xsa/advisory-397.txt advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KO...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCP...
• https://security.gentoo.org/glsa/202402-07