ubuntu-cve-2016-2568
Vulnerability from osv_ubuntu
Published
2017-02-13 18:59
Modified
2026-05-20 14:49
Summary
Details
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Severity
7.8 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "0.105-4ubuntu3.14.04.6+esm1"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "0.105-4ubuntu3.14.04.6+esm1"
},
{
"binary_name": "libpolkit-backend-1-0",
"binary_version": "0.105-4ubuntu3.14.04.6+esm1"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "0.105-4ubuntu3.14.04.6+esm1"
},
{
"binary_name": "policykit-1",
"binary_version": "0.105-4ubuntu3.14.04.6+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@0.105-4ubuntu3.14.04.6+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.105-3ubuntu3",
"0.105-4ubuntu1",
"0.105-4ubuntu2",
"0.105-4ubuntu2.14.04.1",
"0.105-4ubuntu3.14.04.1",
"0.105-4ubuntu3.14.04.2",
"0.105-4ubuntu3.14.04.5",
"0.105-4ubuntu3.14.04.6",
"0.105-4ubuntu3.14.04.6+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "0.105-14.1ubuntu0.5+esm1"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "0.105-14.1ubuntu0.5+esm1"
},
{
"binary_name": "libpolkit-backend-1-0",
"binary_version": "0.105-14.1ubuntu0.5+esm1"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "0.105-14.1ubuntu0.5+esm1"
},
{
"binary_name": "policykit-1",
"binary_version": "0.105-14.1ubuntu0.5+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@0.105-14.1ubuntu0.5+esm1?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.105-11ubuntu2",
"0.105-13",
"0.105-13ubuntu1",
"0.105-14",
"0.105-14.1",
"0.105-14.1ubuntu0.1",
"0.105-14.1ubuntu0.4",
"0.105-14.1ubuntu0.5",
"0.105-14.1ubuntu0.5+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "0.105-20ubuntu0.18.04.6"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "0.105-20ubuntu0.18.04.6"
},
{
"binary_name": "libpolkit-backend-1-0",
"binary_version": "0.105-20ubuntu0.18.04.6"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "0.105-20ubuntu0.18.04.6"
},
{
"binary_name": "policykit-1",
"binary_version": "0.105-20ubuntu0.18.04.6"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@0.105-20ubuntu0.18.04.6?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.105-18",
"0.105-20",
"0.105-20ubuntu0.18.04.1",
"0.105-20ubuntu0.18.04.4",
"0.105-20ubuntu0.18.04.5",
"0.105-20ubuntu0.18.04.6"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "0.105-26ubuntu1.3"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "0.105-26ubuntu1.3"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "0.105-26ubuntu1.3"
},
{
"binary_name": "policykit-1",
"binary_version": "0.105-26ubuntu1.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@0.105-26ubuntu1.3?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.105-26ubuntu1",
"0.105-26ubuntu1.1",
"0.105-26ubuntu1.2",
"0.105-26ubuntu1.3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "0.105-33ubuntu0.1"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "0.105-33ubuntu0.1"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "0.105-33ubuntu0.1"
},
{
"binary_name": "pkexec",
"binary_version": "0.105-33ubuntu0.1"
},
{
"binary_name": "policykit-1",
"binary_version": "0.105-33ubuntu0.1"
},
{
"binary_name": "polkitd",
"binary_version": "0.105-33ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@0.105-33ubuntu0.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.105-31",
"0.105-31ubuntu1",
"0.105-31.1",
"0.105-32",
"0.105-33",
"0.105-33ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "124-2ubuntu1.24.04.3"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "124-2ubuntu1.24.04.3"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "124-2ubuntu1.24.04.3"
},
{
"binary_name": "pkexec",
"binary_version": "124-2ubuntu1.24.04.3"
},
{
"binary_name": "policykit-1",
"binary_version": "124-2ubuntu1.24.04.3"
},
{
"binary_name": "polkitd",
"binary_version": "124-2ubuntu1.24.04.3"
},
{
"binary_name": "polkitd-pkla",
"binary_version": "124-2ubuntu1.24.04.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@124-2ubuntu1.24.04.3?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"123-1",
"123-3",
"124-1",
"124-1ubuntu1",
"124-2ubuntu1",
"124-2ubuntu1.24.04.2",
"124-2ubuntu1.24.04.3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "126-2ubuntu0.1"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "126-2ubuntu0.1"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "126-2ubuntu0.1"
},
{
"binary_name": "pkexec",
"binary_version": "126-2ubuntu0.1"
},
{
"binary_name": "polkitd",
"binary_version": "126-2ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@126-2ubuntu0.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"126-2",
"126-2ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-polkit-1.0",
"binary_version": "127-2ubuntu1"
},
{
"binary_name": "libpolkit-agent-1-0",
"binary_version": "127-2ubuntu1"
},
{
"binary_name": "libpolkit-gobject-1-0",
"binary_version": "127-2ubuntu1"
},
{
"binary_name": "pkexec",
"binary_version": "127-2ubuntu1"
},
{
"binary_name": "polkitd",
"binary_version": "127-2ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "policykit-1",
"purl": "pkg:deb/ubuntu/policykit-1@127-2ubuntu1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"126-2",
"127-1",
"127-2",
"127-2ubuntu1"
]
}
],
"aliases": [],
"details": "pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal\u0027s input buffer.",
"id": "UBUNTU-CVE-2016-2568",
"modified": "2026-05-20T14:49:14Z",
"published": "2017-02-13T18:59:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-2568"
},
{
"type": "REPORT",
"url": "http://seclists.org/oss-sec/2016/q1/443"
},
{
"type": "REPORT",
"url": "https://lore.kernel.org/patchwork/patch/793178/"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2016-2568"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2016-2568"
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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