gsd-2018-7738
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-7738",
"description": "In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.",
"id": "GSD-2018-7738",
"references": [
"https://www.suse.com/security/cve/CVE-2018-7738.html",
"https://www.debian.org/security/2018/dsa-4134",
"https://ubuntu.com/security/CVE-2018-7738",
"https://advisories.mageia.org/CVE-2018-7738.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2018-7738"
],
"details": "In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.",
"id": "GSD-2018-7738",
"modified": "2023-12-13T01:22:32.462211Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2018-7738",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/karelzak/util-linux/issues/539",
"refsource": "MISC",
"url": "https://github.com/karelzak/util-linux/issues/539"
},
{
"name": "DSA-4134",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2018/dsa-4134"
},
{
"name": "103367",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/103367"
},
{
"name": "https://bugs.debian.org/892179",
"refsource": "MISC",
"url": "https://bugs.debian.org/892179"
},
{
"name": "https://github.com/karelzak/util-linux/commit/75f03badd7ed9f1dd951863d75e756883d3acc55",
"refsource": "MISC",
"url": "https://github.com/karelzak/util-linux/commit/75f03badd7ed9f1dd951863d75e756883d3acc55"
},
{
"name": "USN-4512-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/4512-1/"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:kernel:util-linux:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "2.31",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2018-7738"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/karelzak/util-linux/issues/539",
"refsource": "MISC",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/karelzak/util-linux/issues/539"
},
{
"name": "https://github.com/karelzak/util-linux/commit/75f03badd7ed9f1dd951863d75e756883d3acc55",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/karelzak/util-linux/commit/75f03badd7ed9f1dd951863d75e756883d3acc55"
},
{
"name": "https://bugs.debian.org/892179",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://bugs.debian.org/892179"
},
{
"name": "DSA-4134",
"refsource": "DEBIAN",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2018/dsa-4134"
},
{
"name": "103367",
"refsource": "BID",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/103367"
},
{
"name": "USN-4512-1",
"refsource": "UBUNTU",
"tags": [],
"url": "https://usn.ubuntu.com/4512-1/"
}
]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
},
"lastModifiedDate": "2020-09-25T18:15Z",
"publishedDate": "2018-03-07T02:29Z"
}
}
}
Loading...