CVE-2024-43839
Published: August 22, 2024Last modified: August 22, 2024
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.104-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1
- https://git.kernel.org/stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3
- https://git.kernel.org/stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef
- https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43
- https://git.kernel.org/stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76
- https://git.kernel.org/stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da
- https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5
- https://git.kernel.org/stable/c/f121740f69eda4da2de9a20a6687a13593e72540