fkie_cve-2022-2601
Vulnerability from fkie_nvd
Published
2022-12-14 21:15
Modified
2024-11-21 07:01
Severity ?
Summary
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
References
Impacted products
{
"configurations": [
{
"nodes": [
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism."
},
{
"lang": "es",
"value": "Se encontr\u00f3 un desbordamiento del b\u00fafer en grub_font_construct_glyph(). Una fuente pf2 manipulada maliciosamente puede provocar un desbordamiento al calcular el valor max_glyph_size, asignando un b\u00fafer m\u00e1s peque\u00f1o de lo necesario para el glifo, lo que adem\u00e1s provoca un desbordamiento del b\u00fafer y una escritura fuera de los l\u00edmites basada en el heap. Un atacante puede utilizar esta vulnerabilidad para eludir el mecanismo de arranque seguro."
}
],
"id": "CVE-2022-2601",
"lastModified": "2024-11-21T07:01:19.873",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-12-14T21:15:10.190",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
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"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0"
},
{
"source": "secalert@redhat.com",
"url": "https://security.gentoo.org/glsa/202311-14"
},
{
"source": "secalert@redhat.com",
"url": "https://security.netapp.com/advisory/ntap-20230203-0004/"
},
{
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"url": "https://arstechnica.com/security/2024/08/a-patch-microsoft-spent-2-years-preparing-is-making-a-mess-for-some-linux-users/"
},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0"
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{
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"url": "https://security.gentoo.org/glsa/202311-14"
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"url": "https://security.netapp.com/advisory/ntap-20230203-0004/"
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],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"lang": "en",
"value": "CWE-122"
}
],
"source": "secalert@redhat.com",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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