CVE-2024-49997net: ethernet: lantiq_etop: fix memory disclosure
- 7.5HighCVSS base score
- 1.1%Exploitation in 30 daysEPSS · top 35% 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: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.
Timeline
ID reserved
By Linux
Published
- 24 months later
· 24 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 · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% of all CVEs (12 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 7.5.
Affected products
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 905f06a34f960676e7dc77bea00f2f8fe18177ad
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 60c068444c20bf9a3e22b65b5f6f3d9edc852931
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 185df159843d30fb71f821e7ea4368c2a3bfcd36
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 469856f76f4802c5d7e3d20e343185188de1e2db
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < e66e38d07b31e177ca430758ed97fbc79f27d966
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 1097bf16501ed5e35358d848b0a94ad2830b0f65
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 431b122933b197820d319eb3987a67d04346ce9e
- affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe – < 45c0de18ff2dc9af01236380404bbd6a46502c69
- affected 3.0
- unaffected < 3.0
- unaffected 4.19.323 – ≤ 4.19.*
- unaffected 5.4.285 – ≤ 5.4.*
- unaffected 5.10.227 – ≤ 5.10.*
- unaffected 5.15.168 – ≤ 5.15.*
- unaffected 6.1.113 – ≤ 6.1.*
- unaffected 6.6.55 – ≤ 6.6.*
- unaffected 6.10.14 – ≤ 6.10.*
- unaffected 6.11.3 – ≤ 6.11.*
- unaffected 6.12 – ≤ *
References
References13
- https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad (opens in a new tab)
- https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931 (opens in a new tab)
- https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36 (opens in a new tab)
- https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db (opens in a new tab)
- https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 (opens in a new tab)
- https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966 (opens in a new tab)
- https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65 (opens in a new tab)
- https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e (opens in a new tab)
- https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-355557.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-2024-43671 (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-2024-49997)Record last updated .