High
Security advisory
In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-6560
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:29 UTC · Revision 1
Source evidence
In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon.
osv:CVE-2018-6560
Complete source record
{
"id": "35923fcf0ecad564ec89ae587eb930e94a7da35564c1638753fe067137eaf5da",
"url": "https://osv.dev/vulnerability/CVE-2018-6560",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-6560",
"summary": "In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon.",
"evidence": "osv:CVE-2018-6560",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-6560",
"aliases": [
"CVE-2018-6560"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/flatpak/flatpak",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "102089f14a26b0e805ae3315a9961a06311f5d48"
},
{
"introduced": "696775687721748ba779dfb58f29ab47ed1fd6ae"
},
{
"last_affected": "d952cdab9b7f9c38ad7bda43c33209ba3fcb0230"
},
{
"introduced": "2a0c17976fadf65badc3d18df565a7f04e7089b0"
},
{
"fixed": "a3a83241e398b72cdd8b13b13c55ef5ad330a5ed"
},
{
"fixed": "52346bf187b5a7f1c0fe9075b328b7ad6abe78f6"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.8.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0.9.1"
},
{
"last_affected": "0.9.99"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0.10.0"
},
{
"fixed": "0.10.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "52346bf187b5a7f1c0fe9075b328b7ad6abe78f6"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "a3a83241e398b72cdd8b13b13c55ef5ad330a5ed"
}
],
"source": "REFERENCES_TAG",
"original_tag": "0.10.3"
},
{
"range": [
{
"fixed": "102089f14a26b0e805ae3315a9961a06311f5d48"
}
],
"source": "REFERENCES_TAG",
"original_tag": "0.8.9"
}
]
}
}
],
"versions": [
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"0.10.2",
"0.8.8",
"0.10.1",
"0.10.0",
"0.9.99",
"0.9.98.2",
"0.9.98.1",
"0.9.98",
"0.9.12",
"0.9.11",
"0.9.10",
"0.9.9",
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"0.9.7",
"0.8.7",
"0.9.6",
"0.8.6",
"0.9.5",
"0.9.4",
"0.8.5",
"0.9.3",
"0.9.2",
"0.8.4",
"0.9.1",
"0.8.3",
"0.8.2",
"0.8.1",
"0.8.0",
"0.6.14",
"0.6.13",
"0.6.12",
"0.6.11",
"0.6.10",
"0.6.9",
"0.6.8",
"0.6.7",
"0.6.6",
"0.6.5",
"0.6.4",
"0.6.3",
"0.6.2",
"0.6.1",
"0.6.0",
"0.5.2",
"0.5.1",
"0.5.0",
"0.4.13",
"0.4.12",
"0.4.11",
"0.4.10",
"0.4.9",
"0.4.8",
"0.4.7",
"0.4.6",
"0.4.5",
"0.4.4",
"0.4.3",
"0.4.2.1",
"0.4.2",
"0.4.1",
"0.4.0",
"0.3.6",
"0.3.5",
"0.3.4",
"0.3.3",
"0.3.2",
"0.3.1",
"0.3",
"0.2.1",
"0.2",
"0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6560.json",
"vanir_signatures": [
{
"id": "CVE-2018-6560-49e0d6bc",
"digest": {
"length": 432,
"function_hash": "271580508226823062190979009490022597235"
},
"source": "https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6",
"target": {
"file": "dbus-proxy/flatpak-proxy.c",
"function": "flatpak_proxy_client_finalize"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2018-6560-5cba92a9",
"digest": {
"threshold": 0.9,
"line_hashes": [
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]
},
"source": "https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6",
"target": {
"file": "dbus-proxy/flatpak-proxy.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2018-6560-60591b92",
"digest": {
"length": 906,
"function_hash": "94076229903423218780424398294283891515"
},
"source": "https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6",
"target": {
"file": "dbus-proxy/flatpak-proxy.c",
"function": "find_auth_end"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2018-6560-7615320d",
"digest": {
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"function_hash": "71478221109172127664663139852962333889"
},
"source": "https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6",
"target": {
"file": "dbus-proxy/flatpak-proxy.c",
"function": "flatpak_proxy_client_init"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2018-6560-e2b6af12",
"digest": {
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"function_hash": "222230739918166777936704554248456636559"
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"source": "https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6",
"target": {
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"function": "side_in_cb"
},
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"signature_type": "Function",
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}
],
"vanir_signatures_modified": "2026-10-20T13:44:56Z"
}
}
],
"modified": "2026-10-20T13:44:56.200744033Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2018:2766",
"https://github.com/flatpak/flatpak/releases/tag/0.10.3",
"https://github.com/flatpak/flatpak/releases/tag/0.8.9",
"https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_desktop",
"extracted_events": [
{
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{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server",
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{
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{
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],
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}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_aus",
"extracted_events": [
{
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{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_eus",
"extracted_events": [
{
"range": [
{
"introduced": "7.5"
},
{
"last_affected": "7.5"
},
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_tus",
"extracted_events": [
{
"range": [
{
"introduced": "7.6"
},
{
"last_affected": "7.6"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_workstation",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-6560",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388018,
"published_at": "2018-02-02T14:29:01.637+00:00"
}