gsd-2020-14309
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-14309",
"description": "There\u0027s an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.",
"id": "GSD-2020-14309",
"references": [
"https://www.suse.com/security/cve/CVE-2020-14309.html",
"https://www.debian.org/security/2020/dsa-4735",
"https://access.redhat.com/errata/RHSA-2020:3276",
"https://access.redhat.com/errata/RHSA-2020:3275",
"https://access.redhat.com/errata/RHSA-2020:3274",
"https://access.redhat.com/errata/RHSA-2020:3273",
"https://access.redhat.com/errata/RHSA-2020:3271",
"https://access.redhat.com/errata/RHSA-2020:3227",
"https://access.redhat.com/errata/RHSA-2020:3223",
"https://access.redhat.com/errata/RHSA-2020:3217",
"https://access.redhat.com/errata/RHSA-2020:3216",
"https://ubuntu.com/security/CVE-2020-14309",
"https://advisories.mageia.org/CVE-2020-14309.html",
"https://linux.oracle.com/cve/CVE-2020-14309.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-14309"
],
"details": "There\u0027s an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.",
"id": "GSD-2020-14309",
"modified": "2023-12-13T01:22:00.316568Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2020-14309",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Grub",
"version": {
"version_data": [
{
"version_value": "All grub2 versions before 2.06"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
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"value": "There\u0027s an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Integer Overflow or Wraparound leading to Heap-based Buffer Overflow"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1852022",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1852022"
},
{
"name": "https://security.netapp.com/advisory/ntap-20200731-0008/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20200731-0008/"
},
{
"name": "USN-4432-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/4432-1/"
},
{
"name": "openSUSE-SU-2020:1169",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html"
},
{
"name": "openSUSE-SU-2020:1168",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html"
},
{
"name": "GLSA-202104-05",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202104-05"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "2.06",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
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]
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"ID": "CVE-2020-14309"
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"description": {
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"value": "There\u0027s an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
},
{
"lang": "en",
"value": "CWE-190"
}
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},
"references": {
"reference_data": [
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1852022",
"refsource": "MISC",
"tags": [
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1852022"
},
{
"name": "https://security.netapp.com/advisory/ntap-20200731-0008/",
"refsource": "CONFIRM",
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"url": "https://security.netapp.com/advisory/ntap-20200731-0008/"
},
{
"name": "USN-4432-1",
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{
"name": "openSUSE-SU-2020:1169",
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"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html"
},
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"refsource": "SUSE",
"tags": [
"Mailing List",
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],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html"
},
{
"name": "GLSA-202104-05",
"refsource": "GENTOO",
"tags": [
"Third Party Advisory"
],
"url": "https://security.gentoo.org/glsa/202104-05"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 0.8,
"impactScore": 5.9
}
},
"lastModifiedDate": "2022-04-28T18:58Z",
"publishedDate": "2020-07-30T13:15Z"
}
}
}
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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.
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- 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.