linux-pam (aka Linux PAM) before 1.6.0 allows attackers to cause a denial of service (blocked login process) via mkfifo because the openat call (for protectdir) lacks ODIRECTORY.
{
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{
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"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
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"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
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{
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"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
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{
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"binary_name": "libpam-cracklib"
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"binary_name": "libpam-modules"
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"binary_version": "1.3.1-5ubuntu4.7",
"binary_name": "libpam0g-dev"
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],
"availability": "No subscription required"
}
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"binary_name": "libpam-cracklib"
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"binary_name": "libpam0g"
},
{
"binary_version": "1.4.0-11ubuntu2.4",
"binary_name": "libpam0g-dev"
}
],
"availability": "No subscription required"
}