ghsa-9fg2-2f57-9p5h
Vulnerability from github
Published
2025-02-24 09:35
Modified
2025-05-13 21:30
Severity ?
Details
The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub's internal critical data and secure boot bypass is not discarded as consequence.
{
"affected": [],
"aliases": [
"CVE-2025-0690"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-24T08:15:09Z",
"severity": "MODERATE"
},
"details": "The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it\u0027s possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub\u0027s internal critical data and secure boot bypass is not discarded as consequence.",
"id": "GHSA-9fg2-2f57-9p5h",
"modified": "2025-05-13T21:30:28Z",
"published": "2025-02-24T09:35:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0690"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:6990"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-0690"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2346123"
},
{
"type": "WEB",
"url": "https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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- 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.