CVE-2023-34319

Katalog CVE

CVSS 7.8 · High EPSS 0,29%

Kerentanan Out-of-bounds Write pada xen, debian linux +1 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

The fix for XSA-423 added logic to Linux'es netback driver to deal with a frontend splitting a packet in a way such that not all of the headers would come in one piece. Unfortunately the logic introduced there didn't account for the extreme case of the entire packet being split into as many pieces as permitted by the protocol, yet still being smaller than the area that's specially dealt with to keep all (possible) headers together. Such an unusual packet would therefore trigger a buffer overrun in the driver.

Rincian

Terbit di NVD

22 September 2023

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-787: Out-of-bounds Write

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 20,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://xenbits.xenproject.org/xsa/advisory-432.html mitigasi · patch · advisory vendor
• http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html advisory pihak ketiga · vdb entry
• https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20240202-0001/ advisory pihak ketiga
• http://xenbits.xen.org/xsa/advisory-432.html
• https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html