| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-49997: net: ethernet: lantiq_etop: fix memory disclosure |
| |
| 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. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49997 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 4.19.323 with commit 905f06a34f960676e7dc77bea00f2f8fe18177ad |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 5.4.285 with commit 60c068444c20bf9a3e22b65b5f6f3d9edc852931 |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 5.10.227 with commit 185df159843d30fb71f821e7ea4368c2a3bfcd36 |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 5.15.168 with commit 469856f76f4802c5d7e3d20e343185188de1e2db |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 6.1.113 with commit 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 6.6.55 with commit e66e38d07b31e177ca430758ed97fbc79f27d966 |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 6.10.14 with commit 1097bf16501ed5e35358d848b0a94ad2830b0f65 |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 6.11.3 with commit 431b122933b197820d319eb3987a67d04346ce9e |
| Issue introduced in 3.0 with commit 504d4721ee8e432af4b5f196a08af38bc4dac5fe and fixed in 6.12 with commit 45c0de18ff2dc9af01236380404bbd6a46502c69 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-49997 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/net/ethernet/lantiq_etop.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad |
| https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931 |
| https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36 |
| https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db |
| https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 |
| https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966 |
| https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65 |
| https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e |
| https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69 |
