NVD Vulnerability Detail
Search Exploit, PoC
CVE-2023-46838
Summary

Transmit requests in Xen's virtual network protocol can consist of
multiple parts. While not really useful, except for the initial part
any of them may be of zero length, i.e. carry no data at all. Besides a
certain initial portion of the to be transferred data, these parts are
directly translated into what Linux calls SKB fragments. Such converted
request parts can, when for a particular SKB they are all of length
zero, lead to a de-reference of NULL in core networking code.

Publication Date Jan. 29, 2024, 8:15 p.m.
Registration Date Jan. 30, 2024, 10 a.m.
Last Update Nov. 21, 2024, 5:29 p.m.
CVSS3.1 : HIGH
スコア 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC) 低
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C) なし
完全性への影響(I) なし
可用性への影響(A) 高
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 6.1.75
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 6.6.14
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 6.7.2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 5.4.268
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 5.15.148
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 5.10.209
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.14 4.19.306
Configuration2 or higher or less more than less than
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List