70848 : stunnel CLOEXEC File Descriptor Leak Information Disclosure
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Disclosure Date


stunnel contains a flaw that may lead to an unauthorized information disclosure.  The issue is triggered when a race condition occurs within the handling of file descriptors in combination with FD_CLOEXEC, which will disclose privileged file descriptors to a local attacker.


Location: Local Access Required
Attack Type: Race Condition
Impact: Loss of Confidentiality
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified
OSVDB: Security Software


Upgrade to version 4.35 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.


Michal Trojnara



CVSSv2 Score

NVD does not currently have a CVSSv2 score assigned.


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