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samba: fd_open_atomic infinite loop due to wrong handling of dangling symlinks

🗓️ 01 Aug 2017 07:46:05Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

Authenticated Samba client can cause the Samba daemon to loop indefinitely due to dangling symlinks, consuming resources.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7x86_64ctdb0:4.6.3-4.el7rhgsctdb-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64ctdb-tests0:4.6.3-4.el7rhgsctdb-tests-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64libsmbclient0:4.6.3-4.el7rhgslibsmbclient-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64libsmbclient-devel0:4.6.3-4.el7rhgslibsmbclient-devel-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64libwbclient0:4.6.3-4.el7rhgslibwbclient-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64libwbclient-devel0:4.6.3-4.el7rhgslibwbclient-devel-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64samba0:4.6.3-4.el7rhgssamba-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64samba-client0:4.6.3-4.el7rhgssamba-client-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7x86_64samba-client-libs0:4.6.3-4.el7rhgssamba-client-libs-0:4.6.3-4.el7rhgs.x86_64.rpm
Red Hat Enterprise Linux7anysamba-common0:4.6.3-4.el7rhgs.noarchsamba-common-0:4.6.3-4.el7rhgs.noarch.noarch.rpm
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13 May 2026 01:43Current
5.7Medium risk
Vulners AI Score5.7
CVSS 36.5
CVSS 26.8
EPSS0.04189
4