gsd-2022-3775
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2022-3775",
"id": "GSD-2022-3775",
"references": [
"https://www.debian.org/security/2022/dsa-5280",
"https://access.redhat.com/errata/RHSA-2022:8494",
"https://access.redhat.com/errata/RHSA-2022:8800",
"https://access.redhat.com/errata/RHSA-2022:8978",
"https://access.redhat.com/errata/RHSA-2023:0047",
"https://access.redhat.com/errata/RHSA-2023:0048",
"https://access.redhat.com/errata/RHSA-2023:0049",
"https://www.suse.com/security/cve/CVE-2022-3775.html",
"https://access.redhat.com/errata/RHSA-2023:0752"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2022-3775"
],
"details": "When rendering certain unicode sequences, grub2\u0027s font code doesn\u0027t proper validate if the informed glyph\u0027s width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2\u0027s heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.",
"id": "GSD-2022-3775",
"modified": "2023-12-13T01:19:40.115059Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2022-3775",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "grub2",
"version": {
"version_data": [
{
"version_value": "All up to 2.06"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "When rendering certain unicode sequences, grub2\u0027s font code doesn\u0027t proper validate if the informed glyph\u0027s width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2\u0027s heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-787"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://access.redhat.com/security/cve/cve-2022-3775",
"refsource": "MISC",
"url": "https://access.redhat.com/security/cve/cve-2022-3775"
},
{
"name": "GLSA-202311-14",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202311-14"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "2.06",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2022-3775"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "When rendering certain unicode sequences, grub2\u0027s font code doesn\u0027t proper validate if the informed glyph\u0027s width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2\u0027s heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://access.redhat.com/security/cve/cve-2022-3775",
"refsource": "MISC",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/security/cve/cve-2022-3775"
},
{
"name": "GLSA-202311-14",
"refsource": "",
"tags": [],
"url": "https://security.gentoo.org/glsa/202311-14"
}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2
}
},
"lastModifiedDate": "2023-11-25T12:15Z",
"publishedDate": "2022-12-19T20:15Z"
}
}
}
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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.