CVE-2024-43839
bna: adjust 'name' buf size of bna_tcb and bna_ccb structures
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.37
References 8
git.kernel.org
- stable/c/f121740f69eda4da2de9a20a6687a13593e72540
- stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76
- stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1
- stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3
- stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef
- stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43
- stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5
- stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da