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Subject: New Linux kernel 2.4.27 packages fix several issues
--------------------------------------------------------------------------
Debian Security Advisory DSA XXX-1 security@debian.org
http://www.debian.org/security/ Dann Frazier, Simon Horman
XXXXX 8th, 2005 http://www.debian.org/security/faq
--------------------------------------------------------------------------
Package : kernel-source-2.4.27
Vulnerability : several
Problem-Type : local/remote
Debian-specific: no
CVE IDs : CVE-2004-0887 CVE-2004-1058 CVE-2004-2607 CVE-2005-0449 CVE-2005-1761 CVE-2005-2457 CVE-2005-2555 CVE-2005-2709 CVE-2005-2973 CVE-2005-3257 CVE-2005-3783 CVE-2005-3806 CVE-2005-3848 CVE-2005-3857 CVE-2005-3858 CVE-2005-4618
Debian Bug :
Several local and remote vulnerabilities have been discovered in the Linux
kernel that may lead to a denial of service or the execution of arbitrary
code. The Common Vulnerabilities and Exposures project identifies the
following problems:
CVE-2004-0887
Martin Schwidefsky discovered that the privileged instruction SACF (Set
Address Space Control Fast) on the S/390 platform is not handled properly,
allowing for a local user to gain root privileges.
CVE-2004-1058
A race condition allows for a local user to read the environment variables
of another process that is still spawning through /proc/.../cmdline.
CVE-2004-2607
A numeric casting discrepancy in sdla_xfer allows local users to read
portions of kernel memory via a large len argument which is received as an
int but cast to a short, preventing read loop from filling a buffer.
CVE-2005-0449
An error in the skb_checksum_help() function from the netfilter framework
has been discovered that allows the bypass of packet filter rules or
a denial of service attack.
CVE-2005-1761
A vulnerability in the ptrace subsystem of the IA-64 architecture can
allow local attackers to overwrite kernel memory and crash the kernel.
CVE-2005-2457
Tim Yamin discovered that insufficient input validation in the compressed
ISO file system (zisofs) allows a denial of service attack through
maliciously crafted ISO images.
CVE-2005-2555
Herbert Xu discovered that the setsockopt() function was not restricted to
users/processes with the CAP_NET_ADMIN capability. This allows attackers to
manipulate IPSEC policies or initiate a denial of service attack.
CVE-2005-2709
Al Viro discovered a race condition in the /proc handling of network devices.
A (local) attacker could exploit the stale reference after interface shutdown
to cause a denial of service or possibly execute code in kernel mode.
CVE-2005-2973
Tetsuo Handa discovered that the udp_v6_get_port() function from the IPv6 code
can be forced into an endless loop, which allows a denial of service attack.
CVE-2005-3257
Rudolf Polzer discovered that the kernel improperly restricts access to the
KDSKBSENT ioctl, which can possibly lead to privilege escalation.
CVE-2005-3783
The ptrace code using CLONE_THREAD didn't use the thread group ID to
determine whether the caller is attaching to itself, which allows a denial
of service attack.
CVE-2005-3806
Yen Zheng discovered that the IPv6 flow label code modified an incorrect variable,
which could lead to memory corruption and denial of service.
CVE-2005-3848
Ollie Wild discovered a memory leak in the icmp_push_reply() function, which
allows denial of service through memory consumption.
CVE-2005-3857
Chris Wright discovered that excessive allocation of broken file lock leases
in the VFS layer can exhaust memory and fill up the system logging, which allows
denial of service.
CVE-2005-3858
Patrick McHardy discovered a memory leak in the ip6_input_finish() function from
the IPv6 code, which allows denial of service.
CVE-2005-4618
Yi Ying discovered that sysctl does not properly enforce the size of a
buffer, which allows a denial of service attack.
The following matrix explains which kernel version for which architecture
fix the problems mentioned above:
Debian 3.1 (sarge)
Source 2.4.27-10sarge2
Alpha architecture 2.4.27-10sarge2
ARM architecture 2.4.27-2sarge2
Intel IA-32 architecture 2.4.27-10sarge2
Intel IA-64 architecture 2.4.27-10sarge2
Motorola 680x0 architecture 2.4.27-3sarge2
Big endian MIPS architecture 2.4.27-10.sarge1.040815-2
Little endian MIPS architecture 2.4.27-10.sarge1.040815-2
PowerPC architecture 2.4.27-10sarge2
IBM S/390 architecture 2.4.27-2sarge2
Sun Sparc architecture 2.4.27-9sarge2
The following matrix lists additional packages that were rebuilt for
compatability with or to take advantage of this update:
Debian 3.1 (sarge)
kernel-latest-2.4-alpha 101sarge1
kernel-latest-2.4-i386 101sarge1
kernel-latest-2.4-s390 2.4.27-1sarge1
kernel-latest-2.4-sparc 42sarge1
kernel-latest-powerpc 102sarge1
fai-kernels 1.9.1sarge1
i2c 1:2.9.1-1sarge1
kernel-image-speakup-i386 2.4.27-1.1sasrge1
lm-sensors 1:2.9.1-1sarge3
mindi-kernel 2.4.27-2sarge1
pcmcia-modules-2.4.27-i386 3.2.5+2sarge1
systemimager 3.2.3-6sarge1
We recommend that you upgrade your kernel package immediately and reboot
the machine. If you have built a custom kernel from the kernel source
package, you will need to rebuild to take advantage of these fixes.
Upgrade Instructions
--------------------
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 3.1 alias sarge
--------------------------------
These files will probably be moved into the stable distribution on
its next update.
---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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