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{
"CVE_data_meta" : {
"ASSIGNER" : "cve@mitre.org" ,
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"ID" : "CVE-2019-12749" ,
"STATE" : "PUBLIC"
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} ,
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"affects" : {
"vendor" : {
"vendor_data" : [
{
"product" : {
"product_data" : [
{
"product_name" : "n/a" ,
"version" : {
"version_data" : [
{
"version_value" : "n/a"
}
]
}
}
]
} ,
"vendor_name" : "n/a"
}
]
}
} ,
"data_format" : "MITRE" ,
"data_type" : "CVE" ,
"data_version" : "4.0" ,
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"description" : {
"description_data" : [
{
"lang" : "eng" ,
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"value" : "dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass."
}
]
} ,
"problemtype" : {
"problemtype_data" : [
{
"description" : [
{
"lang" : "eng" ,
"value" : "n/a"
}
]
}
]
} ,
"references" : {
"reference_data" : [
{
"refsource" : "MISC" ,
"name" : "https://www.openwall.com/lists/oss-security/2019/06/11/2" ,
"url" : "https://www.openwall.com/lists/oss-security/2019/06/11/2"
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} ,
{
"refsource" : "MLIST" ,
"name" : "[oss-security] 20190611 CVE-2019-12749: DBusServer DBUS_COOKIE_SHA1 authentication bypass" ,
"url" : "http://www.openwall.com/lists/oss-security/2019/06/11/2"
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} ,
{
"refsource" : "UBUNTU" ,
"name" : "USN-4015-1" ,
"url" : "https://usn.ubuntu.com/4015-1/"
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} ,
{
"refsource" : "UBUNTU" ,
"name" : "USN-4015-2" ,
"url" : "https://usn.ubuntu.com/4015-2/"
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} ,
{
"refsource" : "DEBIAN" ,
"name" : "DSA-4462" ,
"url" : "https://www.debian.org/security/2019/dsa-4462"
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} ,
{
"refsource" : "BUGTRAQ" ,
"name" : "20190613 [SECURITY] [DSA 4462-1] dbus security update" ,
"url" : "https://seclists.org/bugtraq/2019/Jun/16"
} ,
{
"refsource" : "BID" ,
"name" : "108751" ,
"url" : "http://www.securityfocus.com/bid/108751"
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} ,
{
"refsource" : "MLIST" ,
"name" : "[debian-lts-announce] 20190614 [SECURITY] [DLA 1818-1] dbus security update" ,
"url" : "https://lists.debian.org/debian-lts-announce/2019/06/msg00005.html"
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} ,
{
"refsource" : "FEDORA" ,
"name" : "FEDORA-2019-d5ded5326b" ,
"url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/"
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} ,
{
"refsource" : "SUSE" ,
"name" : "openSUSE-SU-2019:1604" ,
"url" : "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00059.html"
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} ,
{
"refsource" : "SUSE" ,
"name" : "openSUSE-SU-2019:1671" ,
"url" : "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00092.html"
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}
]
}
}