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Mandrake Linux Advisory: stunnel

Nov 26, 2003, 14:27 (0 Talkback[s])

Mandrake Linux Security Update Advisory

Package name: stunnel
Advisory ID: MDKSA-2003:108
Date: November 25th, 2003
Affected versions: 9.0, Corporate Server 2.1

Problem Description:

A vulnerability was discovered in stunnel versions 3.24 and earlier, as well as 4.00, by Steve Grubb. It was found that stunnel leaks a critical file descriptor that can be used to hijack stunnel's services.

All users are encouraged to upgrade to these packages. Note that the version of stunnel provided with Mandrake Linux 9.1 and above is not vulnerable to this problem.


Updated Packages:

Corporate Server 2.1:
77c752f98e0685dd677656e56b6a931c corporate/2.1/RPMS/stunnel-3.26-1.1.C21mdk.i586.rpm
45596e6e50ed995cf4b18f9bd7366828 corporate/2.1/SRPMS/stunnel-3.26-1.1.C21mdk.src.rpm

Corporate Server 2.1/x86_64:
f080fa4956c146a3e40dc05ae6dbefe8 x86_64/corporate/2.1/RPMS/stunnel-3.26-1.1.C21mdk.x86_64.rpm
45596e6e50ed995cf4b18f9bd7366828 x86_64/corporate/2.1/SRPMS/stunnel-3.26-1.1.C21mdk.src.rpm

Mandrake Linux 9.0:
6b3eec02f63aa0d7aa64fe79b62e3020 9.0/RPMS/stunnel-3.26-1.1.90mdk.i586.rpm
14afcc8f0257338107bc60e33919a465 9.0/SRPMS/stunnel-3.26-1.1.90mdk.src.rpm

To upgrade automatically use MandrakeUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you.

A list of FTP mirrors can be obtained from:

All packages are signed by MandrakeSoft for security. You can obtain the GPG public key of the Mandrake Linux Security Team by executing:

gpg --recv-keys --keyserver 0x22458A98

Please be aware that sometimes it takes the mirrors a few hours to update.

You can view other update advisories for Mandrake Linux at:

MandrakeSoft has several security-related mailing list services that anyone can subscribe to. Information on these lists can be obtained by visiting:

If you want to report vulnerabilities, please contact

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team <security>