[IT-SecNots] [SECURITY] [DSA 3421-1] grub2 security update

[Luciano Bello <luciano AT debian.org>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3421-1                   security AT debian.org
https://www.debian.org/security/                            Luciano Bello
December 16, 2015                     https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : grub2
CVE ID         : CVE-2015-8370
Debian Bug     : 807614

Hector Marco and Ismael Ripoll, from Cybersecurity UPV Research Group,
found an integer underflow vulnerability in Grub2, a popular bootloader.
A local attacker can bypass the Grub2 authentication by inserting a
crafted input as username or password.

More information:
http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html

For the oldstable distribution (wheezy), this problem has been fixed
in version 1.99-27+deb7u3.

For the stable distribution (jessie), this problem has been fixed in
version 2.02~beta2-22+deb8u1.

For the unstable distribution (sid), this problem has been fixed in
version 2.02~beta2-33.

We recommend that you upgrade your grub2 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 AT lists.debian.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=OKnv
-----END PGP SIGNATURE-----