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[slackware-security] openvpn (SSA:2025-323-01)

Posted on 20 November 2025
Slackware Security

[slackware-security] openvpn (SSA:2025-323-01)

New openvpn packages are available for Slackware 15.0 and -current to
fix security issues.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/openvpn-2.6.16-i586-1_slack15.0.txz: Upgraded.
This update fixes a security issue:
Fix memcmp check for the hmac verification in the 3way handshake.
This bug renders the HMAC based protection against state exhaustion on
receiving spoofed TLS handshake packets in the OpenVPN server inefficient.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-13086
(* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/openvpn-2.6.16-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/openvpn-2.6.16-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/openvpn-2.6.16-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/openvpn-2.6.16-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 15.0 package:
f3800e33112d44d10d846224eb480e81 openvpn-2.6.16-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
cdaa50283a4666a8833606e3845e4f31 openvpn-2.6.16-x86_64-1_slack15.0.txz

Slackware -current package:
0ad85260fe495647e4cc543207e65905 n/openvpn-2.6.16-i686-1.txz

Slackware x86_64 -current package:
d911262d05d67dfc9f0f8f642a87b0f4 n/openvpn-2.6.16-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg openvpn-2.6.16-i586-1_slack15.0.txz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

 

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