Matthias Gerstner discovered that the PAM pam_namespace module incorrectly handled special files when performing directory checks. A local attacker could possibly use this issue to cause PAM to stop responding, resulting in a denial of service.
{
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]
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6588-1.json"
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"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6588-1.json"