msrc_cve-2018-16866
Vulnerability from csaf_microsoft
Published
2019-01-02 00:00
Modified
2020-08-18 00:00
Summary
An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.
Notes
Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
{
"document": {
"category": "csaf_vex",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en-US",
"notes": [
{
"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
"title": "Disclaimer"
}
],
"publisher": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2018-16866 An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2019/msrc_cve-2018-16866.json"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.",
"tracking": {
"current_release_date": "2020-08-18T00:00:00.000Z",
"generator": {
"date": "2025-10-19T17:28:43.581Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2018-16866",
"initial_release_date": "2019-01-02T00:00:00.000Z",
"revision_history": [
{
"date": "2020-08-18T00:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "1.0",
"product": {
"name": "CBL Mariner 1.0",
"product_id": "16820"
}
}
],
"category": "product_name",
"name": "Azure Linux"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccm1 systemd 239-31",
"product": {
"name": "\u003ccm1 systemd 239-31",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "cm1 systemd 239-31",
"product": {
"name": "cm1 systemd 239-31",
"product_id": "16951"
}
}
],
"category": "product_name",
"name": "systemd"
}
],
"category": "vendor",
"name": "Microsoft"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccm1 systemd 239-31 as a component of CBL Mariner 1.0",
"product_id": "16820-1"
},
"product_reference": "1",
"relates_to_product_reference": "16820"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "cm1 systemd 239-31 as a component of CBL Mariner 1.0",
"product_id": "16951-16820"
},
"product_reference": "16951",
"relates_to_product_reference": "16820"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2018-16866",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"notes": [
{
"category": "general",
"text": "redhat",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"16951-16820"
],
"known_affected": [
"16820-1"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2018-16866 An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2019/msrc_cve-2018-16866.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2020-08-18T00:00:00.000Z",
"details": "-:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"16820-1"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.3,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"environmentalsScore": 0.0,
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"temporalScore": 3.3,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"products": [
"16820-1"
]
}
],
"title": "An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable."
}
]
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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