gsd-2019-6454
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2019-6454",
"description": "An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).",
"id": "GSD-2019-6454",
"references": [
"https://www.suse.com/security/cve/CVE-2019-6454.html",
"https://www.debian.org/security/2019/dsa-4393",
"https://access.redhat.com/errata/RHSA-2019:2805",
"https://access.redhat.com/errata/RHSA-2019:1502",
"https://access.redhat.com/errata/RHSA-2019:1322",
"https://access.redhat.com/errata/RHSA-2019:0990",
"https://access.redhat.com/errata/RHSA-2019:0461",
"https://access.redhat.com/errata/RHSA-2019:0457",
"https://access.redhat.com/errata/RHSA-2019:0368",
"https://ubuntu.com/security/CVE-2019-6454",
"https://security.archlinux.org/CVE-2019-6454",
"https://linux.oracle.com/cve/CVE-2019-6454.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2019-6454",
"modified": "2023-12-13T01:23:49.773244Z",
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"url": "https://access.redhat.com/errata/RHSA-2019:0990"
},
{
"name": "openSUSE-SU-2019:1450",
"refsource": "SUSE",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html"
},
{
"name": "RHSA-2019:1322",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2019:1322"
},
{
"name": "RHSA-2019:1502",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2019:1502"
},
{
"name": "RHSA-2019:2805",
"refsource": "REDHAT",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2019:2805"
},
{
"name": "[oss-security] 20210720 CVE-2021-33910: Denial of service (stack exhaustion) in systemd (PID 1)",
"refsource": "MLIST",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2021/07/20/2"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 4.9,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2022-02-20T06:08Z",
"publishedDate": "2019-03-21T16:01Z"
}
}
}
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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.