Two new updates has been released for Debian 6 LTS and one new update for Debian 7:

[DLA 288-1] openssh security update
[DLA 289-1] remind security update
[DSA 3329-1] linux security update

[DLA 288-1] openssh security update

Package : openssh
Version : 1:5.5p1-6+squeeze6
CVE ID : CVE-2015-5352 CVE-2015-5600
Debian Bug : #790798 #793616

A recent upload of OpenSSH to Debian squeeze-lts fixes two security issues.

CVE-2015-5352

It was reported that when forwarding X11 connections with
ForwardX11Trusted=no, connections made after ForwardX11Timeout
(hard-coded value of 1200secs in the Debian squeeze version of
OpenSSH) expired could be permitted and no longer subject to XSECURITY
restrictions because of an ineffective timeout check in ssh(1)
coupled with "fail open" behaviour in the X11 server when clients
attempted connections with expired credentials. This problem was
reported by Jann Horn.

We now reject X11 connections after the hard-coded Xauth cookie
expiration time of 1200 seconds.

CVE-2015-5600

It was found that OpenSSH would allow an attacker to request a large
number of keyboard-interactive devices when entering a password,
which could allow a remote attacker to bypass the MaxAuthTries limit
defined in the sshd_config file.

This flaw only affects OpenSSH configurations that have the
'KbdInteractiveAuthentication' configuration option set to 'yes'. By
default, this option has the same value as the
'ChallengeResponseAuthentication' option.

By default, all versions of Debian have the
'ChallengeResponseAuthentication' option set to 'no', meaning default
OpenSSH configurations are not affected by this flaw.

We now only query each keyboard-interactive device once per
authentication request regardless of how many times it is listed.

[DLA 289-1] remind security update

Package : remind
Version : 03.01.05-2+deb6u1
CVE ID : CVE-2015-5957

Alexander Keller discovered a buffer overflow issue in remind, a tool for
sophisticatedly reminding you of upcoming events.

If running Debian squeeze LTS, we recommend upgrading remind to the latest
version provided.

[DSA 3329-1] linux security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3329-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
August 07, 2015 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : linux
CVE ID : CVE-2015-1333 CVE-2015-3212 CVE-2015-4692 CVE-2015-4700
CVE-2015-5364 CVE-2015-5366 CVE-2015-5697 CVE-2015-5706
CVE-2015-5707

Several vulnerabilities have been discovered in the Linux kernel
that may lead to a privilege escalation, denial of service or
information leak.

CVE-2015-1333

Colin Ian King discovered a flaw in the add_key function of the
Linux kernel's keyring subsystem. A local user can exploit this flaw
to cause a denial of service due to memory exhaustion.

CVE-2015-3212

Ji Jianwen of Red Hat Engineering discovered a flaw in the handling
of the SCTPs automatic handling of dynamic multi-homed connections.
A local attacker could use this flaw to cause a crash or potentially
for privilege escalation.

CVE-2015-4692

A NULL pointer dereference flaw was found in the
kvm_apic_has_events function in the KVM subsystem. A unprivileged
local user could exploit this flaw to crash the system kernel
resulting in denial of service.

CVE-2015-4700

Daniel Borkmann discovered a flaw in the Linux kernel implementation
of the Berkeley Packet Filter which can be used by a local user to
crash the system.

CVE-2015-5364

It was discovered that the Linux kernel does not properly handle
invalid UDP checksums. A remote attacker could exploit this flaw to
cause a denial of service using a flood of UDP packets with invalid
checksums.

CVE-2015-5366

It was discovered that the Linux kernel does not properly handle
invalid UDP checksums. A remote attacker can cause a denial of
service against applications that use epoll by injecting a single
packet with an invalid checksum.

CVE-2015-5697

A flaw was discovered in the md driver in the Linux kernel leading
to an information leak.

CVE-2015-5706

An user triggerable use-after-free vulnerability in path lookup in
the Linux kernel could potentially lead to privilege escalation.

CVE-2015-5707

An integer overflow in the SCSI generic driver in the Linux kernel
was discovered. A local user with write permission on a SCSI generic
device could potentially exploit this flaw for privilege escalation.

For the oldstable distribution (wheezy), these problems have been fixed
in version 3.2.68-1+deb7u3. CVE-2015-1333, CVE-2015-4692 and
CVE-2015-5706 do not affect the wheezy distribution.

For the stable distribution (jessie), these problems have been fixed in
version 3.16.7-ckt11-1+deb8u3, except CVE-2015-5364 and CVE-2015-5366
which were fixed already in DSA-3313-1.

For the unstable distribution (sid), these problems have been fixed in
version 4.1.3-1 or earlier versions.

We recommend that you upgrade your linux 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/