CVE-2024-43839bna: adjust 'name' buf size of bna_tcb and bna_ccb structures
- 7.8HighCVSS base score
- 0.25%Exploitation in 30 daysEPSS · top 83% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
Published
- 21 months later
· 21 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.25% · top 83% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < f121740f69eda4da2de9a20a6687a13593e72540
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < c90b1cd7758fd4839909e838ae195d19f8065d76
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < 6ce46045f9b90d952602e2c0b8886cfadf860bf1
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < 6d20c4044ab4d0e6a99aa35853e66f0aed5589e3
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < ab748dd10d8742561f2980fea08ffb4f0cacfdef
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < e0f48f51d55fb187400e9787192eda09fa200ff5
- affected 8b230ed8ec96c933047dd0625cf95f739e4939a6 – < c9741a03dc8e491e57b95fba0058ab46b7e506da
- affected 2.6.37
- unaffected < 2.6.37
- unaffected 4.19.320 – ≤ 4.19.*
- unaffected 5.4.282 – ≤ 5.4.*
- unaffected 5.10.224 – ≤ 5.10.*
- unaffected 5.15.165 – ≤ 5.15.*
- unaffected 6.1.103 – ≤ 6.1.*
- unaffected 6.6.44 – ≤ 6.6.*
- unaffected 6.10.3 – ≤ 6.10.*
- unaffected 6.11 – ≤ *
References
References10
- https://git.kernel.org/stable/c/f121740f69eda4da2de9a20a6687a13593e72540 (opens in a new tab)
- https://git.kernel.org/stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76 (opens in a new tab)
- https://git.kernel.org/stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1 (opens in a new tab)
- https://git.kernel.org/stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3 (opens in a new tab)
- https://git.kernel.org/stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef (opens in a new tab)
- https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43 (opens in a new tab)
- https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5 (opens in a new tab)
- https://git.kernel.org/stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-40489 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-43839)Record last updated .