Oracle Linux: CVE-2024-43839: ELSA-2024-12782: Unbreakable Enterprise kernel-container security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-43839: ELSA-2024-12782: Unbreakable Enterprise kernel-container security update (IMPORTANT) (Multiple Advisories)

Severity

6

CVSS

(AV:L/AC:L/Au:S/C:P/I:P/A:C)

Published

08/17/2024

Created

10/18/2024

Added

10/16/2024

Modified

01/23/2025

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. A vulnerability was found in the Linux kernel involving insufficient buffer size in the bna_tcb and bna_ccb structures. The buffer, named name, was originally 16 bytes, which was inadequate for all possible sprintf() arguments, especially when handling %s and %d specifiers. This limitation could potentially lead to buffer overflows.

Solution(s)

• oracle-linux-upgrade-kernel-uek

References

• https://attackerkb.com/topics/cve-2024-43839
• CVE - 2024-43839
• ELSA-2024-12782
• ELSA-2024-12780
• ELSA-2024-12815
• ELSA-2024-12868