Advisories » MGASA-2017-0372

Updated openvpn packages fix security vulnerability

Publication date: 18 Oct 2017
Modification date: 31 Dec 2017
Type: security
Affected Mageia releases : 5 , 6
CVE: CVE-2017-12166

Description

The bounds check in read_key() was performed after using the value, instead
of before. If 'key-method 1' is used, this allowed an attacker to send a
malformed packet to trigger a stack buffer overflow. Note that 'key-method 1'
has been replaced by 'key method 2' as the default in OpenVPN 2.0
(CVE-2017-12166).
                

References

• https://bugs.mageia.org/show_bug.cgi?id=21780
• https://community.openvpn.net/openvpn/wiki/CVE-2017-12166
• https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn23
• https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn24
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12166

SRPMS

5/core

• openvpn-2.3.18-1.mga5

6/core

• openvpn-2.4.4-1.mga6