CVE-2024-49997
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 6.12 | Affected | — |
| — | Affected | 5.10.227 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.11.4-1 |
| sid | Fixed | 6.11.4-1 |
| forky | Fixed | 6.11.4-1 |
| bullseye | Fixed | 6.1.119-1~deb11u1 |
| bookworm | Fixed | 6.1.115-1 |
References
- https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65
- https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36
- https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18
- https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e
- https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69
- https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db
- https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931
- https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad
- https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://www.suse.com/security/cve/CVE-2024-49997.html
- https://security-tracker.debian.org/tracker/CVE-2024-49997
CWEs
CWE-212
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.