CVE-2022-3643

Katalog CVE

CVSS 6.5 · Medium EPSS 0,49%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada linux kernel, debian linux. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.

Rincian

Terbit di NVD

7 Desember 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

EPSS (30 hari)

0,49% peluang dieksploitasi; lebih tinggi dari 40,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://xenbits.xenproject.org/xsa/advisory-423.txt advisory vendor
• http://www.openwall.com/lists/oss-security/2022/12/07/2 mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html mailing list · advisory pihak ketiga
• http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html