[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

[SECURITY] [DSA 3900-1] openvpn security update



-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3900-1                   security@debian.org
https://www.debian.org/security/                       Sebastien Delafond
June 27, 2017                         https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : openvpn
CVE ID         : CVE-2017-7479 CVE-2017-7508 CVE-2017-7520 CVE-2017-7521
Debian Bug     : 865480

Several issues were discovered in openvpn, a virtual private network
application.

CVE-2017-7479

    It was discovered that openvpn did not properly handle the
    rollover of packet identifiers. This would allow an authenticated
    remote attacker to cause a denial-of-service via application
    crash.

CVE-2017-7508

    Guido Vranken discovered that openvpn did not properly handle
    specific malformed IPv6 packets. This would allow a remote
    attacker to cause a denial-of-service via application crash.

CVE-2017-7520

    Guido Vranken discovered that openvpn did not properly handle
    clients connecting to an HTTP proxy with NTLMv2
    authentication. This would allow a remote attacker to cause a
    denial-of-service via application crash, or potentially leak
    sensitive information like the user's proxy password.

CVE-2017-7521

    Guido Vranken discovered that openvpn did not properly handle
    some x509 extensions. This would allow a remote attacker to cause
    a denial-of-service via application crash.

For the oldstable distribution (jessie), these problems have been fixed
in version 2.3.4-5+deb8u2.

For the stable distribution (stretch), these problems have been fixed in
version 2.4.0-6+deb9u1.

For the testing distribution (buster), these problems have been fixed
in version 2.4.3-1.

For the unstable distribution (sid), these problems have been fixed in
version 2.4.3-1.

We recommend that you upgrade your openvpn packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----

iQEzBAEBCgAdFiEEAqSkbVtrXP4xJMh3EL6Jg/PVnWQFAllStd0ACgkQEL6Jg/PV
nWRU9wf/dfBa7UxecYqbJDJukRYIhSTD43y7cu8UweGHiXtyRiMFasxOvJBeu9Pc
oDg9NnJ5fkEtUQuv7cElr5eMg9sHV/nJ2QYGuVT+8tesJmIPXji7n+ZGZAdia6Kf
U8Ach9xBHaK5Ao+/AhsYRj6fTnBD/uZryt3cS8Z22x6Iku3iJx1m/n0fBOT5mK6l
tK1wmD8nALl3RcS8ERYFAdeDQfKJ6tCyfYyddovy9kCd1NccDKbdx7/07MKUzfZo
VsojNsD6PTCyaUQNl7OaG3EkyPfYDsPGG0UrklSadzxSFD8ynFcjbGr5LmXPhBZ1
zoNdMXDi4M3jPJB6IyVsUW/7u3gBvA==
=Cuk2
-----END PGP SIGNATURE-----


Reply to: