gsd-2019-13272
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2019-13272",
"description": "In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit\u0027s pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.",
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"https://www.debian.org/security/2019/dsa-4484",
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"https://linux.oracle.com/cve/CVE-2019-13272.html",
"https://packetstormsecurity.com/files/cve/CVE-2019-13272",
"https://alas.aws.amazon.com/cve/html/CVE-2019-13272.html"
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"modified": "2023-12-13T01:23:41.646056Z",
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"name": "[debian-lts-announce] 20190723 [SECURITY] [DLA 1863-1] linux-4.9 security update",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00023.html"
},
{
"name": "[debian-lts-announce] 20190723 [SECURITY] [DLA 1862-1] linux security update",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00022.html"
},
{
"name": "http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html",
"refsource": "MISC",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
},
{
"name": "https://security.netapp.com/advisory/ntap-20190806-0001/",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20190806-0001/"
},
{
"name": "RHSA-2019:2405",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2019:2405"
},
{
"name": "RHSA-2019:2411",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2019:2411"
},
{
"name": "USN-4095-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4095-1/"
},
{
"name": "USN-4094-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4094-1/"
},
{
"name": "USN-4093-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4093-1/"
},
{
"name": "http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html",
"refsource": "MISC",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html"
},
{
"name": "https://support.f5.com/csp/article/K91025336",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://support.f5.com/csp/article/K91025336"
},
{
"name": "USN-4117-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4117-1/"
},
{
"name": "USN-4118-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4118-1/"
},
{
"name": "RHSA-2019:2809",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2019:2809"
},
{
"name": "https://support.f5.com/csp/article/K91025336?utm_source=f5support\u0026amp;utm_medium=RSS",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://support.f5.com/csp/article/K91025336?utm_source=f5support\u0026amp;utm_medium=RSS"
},
{
"name": "http://packetstormsecurity.com/files/154957/Linux-Polkit-pkexec-Helper-PTRACE_TRACEME-Local-Root.html",
"refsource": "MISC",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/154957/Linux-Polkit-pkexec-Helper-PTRACE_TRACEME-Local-Root.html"
},
{
"name": "http://packetstormsecurity.com/files/156929/Linux-PTRACE_TRACEME-Local-Root.html",
"refsource": "MISC",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/156929/Linux-PTRACE_TRACEME-Local-Root.html"
},
{
"name": "http://packetstormsecurity.com/files/165051/Linux-Kernel-5.1.x-PTRACE_TRACEME-pkexec-Local-Privilege-Escalation.html",
"refsource": "MISC",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/165051/Linux-Kernel-5.1.x-PTRACE_TRACEME-pkexec-Local-Privilege-Escalation.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
},
"lastModifiedDate": "2023-01-17T21:25Z",
"publishedDate": "2019-07-17T13:15Z"
}
}
}
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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.
- 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.