ghsa-fxx9-w28j-5rc5
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
firmware: cs_dsp: Fix overflow checking of wmfw header
Fix the checking that firmware file buffer is large enough for the wmfw header, to prevent overrunning the buffer.
The original code tested that the firmware data buffer contained enough bytes for the sums of the size of the structs
wmfw_header + wmfw_adsp1_sizes + wmfw_footer
But wmfw_adsp1_sizes is only used on ADSP1 firmware. For ADSP2 and Halo Core the equivalent struct is wmfw_adsp2_sizes, which is 4 bytes longer. So the length check didn't guarantee that there are enough bytes in the firmware buffer for a header with wmfw_adsp2_sizes.
This patch splits the length check into three separate parts. Each of the wmfw_header, wmfw_adsp?_sizes and wmfw_footer are checked separately before they are used.
{
"affected": [],
"aliases": [
"CVE-2024-41039"
],
"database_specific": {
"cwe_ids": [
"CWE-120"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-29T15:15:12Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: cs_dsp: Fix overflow checking of wmfw header\n\nFix the checking that firmware file buffer is large enough for the\nwmfw header, to prevent overrunning the buffer.\n\nThe original code tested that the firmware data buffer contained\nenough bytes for the sums of the size of the structs\n\n\twmfw_header + wmfw_adsp1_sizes + wmfw_footer\n\nBut wmfw_adsp1_sizes is only used on ADSP1 firmware. For ADSP2 and\nHalo Core the equivalent struct is wmfw_adsp2_sizes, which is\n4 bytes longer. So the length check didn\u0027t guarantee that there\nare enough bytes in the firmware buffer for a header with\nwmfw_adsp2_sizes.\n\nThis patch splits the length check into three separate parts. Each\nof the wmfw_header, wmfw_adsp?_sizes and wmfw_footer are checked\nseparately before they are used.",
"id": "GHSA-fxx9-w28j-5rc5",
"modified": "2024-09-10T18:30:42Z",
"published": "2024-07-29T15:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41039"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3019b86bce16fbb5bc1964f3544d0ce7d0137278"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/49a79f344d0a17c6a5eef53716cc76fcdbfca9ba"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9c9877a96e033bf6c6470b3b4f06106d91ace11e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fd035f0810b33c2a8792effdb82bf35920221565"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.