CVE-2024-43839

HIGH

Linux Kernel - Out-of-bounds Write in bna_tcb and bna_ccb Structures

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: bna: adjust 'name' buf size of bna_tcb and bna_ccb structures To have enough space to write all possible sprintf() args. Currently 'name' size is 16, but the first '%s' specifier may already need at least 16 characters, since 'bnad->netdev->name' is used there. For '%d' specifiers, assume that they require: * 1 char for 'tx_id + tx_info->tcb[i]->id' sum, BNAD_MAX_TXQ_PER_TX is 8 * 2 chars for 'rx_id + rx_info->rx_ctrl[i].ccb->id', BNAD_MAX_RXP_PER_RX is 16 And replace sprintf with snprintf. Detected using the static analysis tool - Svace.

Scores

CVSS v3 7.8
EPSS 0.0002
EPSS Percentile 7.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (27)
debian/debian_linux 11.0
linux/Kernel 2.6.37 - 4.19.320linux
linux/Kernel 4.20.0 - 5.4.282linux
linux/Kernel 5.11.0 - 5.15.165linux
linux/Kernel 5.16.0 - 6.1.103linux
linux/Kernel 5.5.0 - 5.10.224linux
linux/Kernel 6.2.0 - 6.6.44linux
linux/Kernel 6.7.0 - 6.10.3linux
Linux/Linux < 2.6.37
Linux/Linux 2.6.37
... and 17 more
Published Aug 17, 2024
Tracked Since Feb 18, 2026