Package name kernel Date February 21st, 2006 Advisory ID MDKSA-2006:044 Affected versions CS2.1, CS3.0

Problem Description

A number of vulnerabilities have been discovered and corrected in the
Linux 2.4 kernel:

A numeric casting discrepancy in sdla_xfer could allow a local user to
read portions of kernel memory via a large len argument
(CVE-2004-2607).

The traps.c file executes stack segment faults on an exception stack,
which could allow a local user to cause an oops and stack fault
exception (CVE-2005-1767).

The find_target function in ptrace32.c does not properly handle a NULL
return value from another function, allowing local users to cause a
kernel crash/oops by running a 32-bit ltrace program with the -i option
on a 64-bit executable program (CVE-2005-2553).

A race condition in ip_vs_conn_flush, when running on SMP systems,
could allow a local attacker to cause null dereference DoS by causing
a connection timer to expire while the connection table is being
flushed before the appropriate lock is acquired (CVE-2005-3274).

The NAT code in ip_nat_proto_tcp.c and ip_nat_proto_udp.c incorrectly
declares a variable to be static, which could allow a remote attacker
to cause a Denial of Service via memory corruption by causing two
packets for the same protocol to be NATed at the same time
(CVE-2005-3275).

The IPv6 flowlabel handling code modified the wrong variable in certain
circumstances, which could allow a local user to corrupt kernel memory
or cause a Denial of Service (crash) by triggering a free of non-
allocated memory (CVE-2005-3806).

The wan/sdla.c file does not require CAP_SYS_RAWIO privilege for an
SDLA firmware upgrade with unknown impact and local attack vectors
(CVE-2006-0096).

The provided packages are patched to fix these vulnerabilities. All
users are encouraged to upgrade to these updated kernels.

To update your kernel, please follow the directions located at:

http://www.mandriva.com/en/security/kernelupdate

Updated Packages

Corporate Server 2.1

 e883a30fa55371ccd1b00ca4b01fd51c  corporate/2.1/RPMS/kernel-2.4.19.50mdk-1-1mdk.i586.rpm
 0a2ea93df25c7a28a1e6abcabcff0eb7  corporate/2.1/RPMS/kernel-enterprise-2.4.19.50mdk-1-1mdk.i586.rpm
 b613dc1a696d76ff9ca6eadcea460f7e  corporate/2.1/RPMS/kernel-secure-2.4.19.50mdk-1-1mdk.i586.rpm
 66d27b21ab86b9bafb470a8f2e17132d  corporate/2.1/RPMS/kernel-smp-2.4.19.50mdk-1-1mdk.i586.rpm
 9c5a579d32d04a613ddac058e84c36e4  corporate/2.1/RPMS/kernel-source-2.4.19-50mdk.i586.rpm
 a28aa7696e74ba20b03d8e9c10eb7056  corporate/2.1/SRPMS/kernel-2.4.19.50mdk-1-1mdk.src.rpm

Corporate Server 2.1/X86_64

 f8fbbd7249b9b1ee1baf7a40d80a844c  x86_64/corporate/2.1/RPMS/kernel-2.4.19.50mdk-1-1mdk.x86_64.rpm
 41be7205227a55588da8439a44e638d1  x86_64/corporate/2.1/RPMS/kernel-secure-2.4.19.50mdk-1-1mdk.x86_64.rpm
 fe437c6ffcb28d9af41ceeba61ce690f  x86_64/corporate/2.1/RPMS/kernel-smp-2.4.19.50mdk-1-1mdk.x86_64.rpm
 0c8e74d0e3013cb0e72b41341defb869  x86_64/corporate/2.1/RPMS/kernel-source-2.4.19-50mdk.x86_64.rpm
 a28aa7696e74ba20b03d8e9c10eb7056  x86_64/corporate/2.1/SRPMS/kernel-2.4.19.50mdk-1-1mdk.src.rpm

Corporate Server 3.0

 f8c290a53ea21a955fe6114b373ad955  corporate/3.0/RPMS/kernel-2.4.25.15mdk-1-1mdk.i586.rpm
 f67d0b16fab2a9b65a3c3fbc1610eec2  corporate/3.0/RPMS/kernel-enterprise-2.4.25.15mdk-1-1mdk.i586.rpm
 1ea0d6ecaa351549815392561ae965d2  corporate/3.0/RPMS/kernel-i686-up-4GB-2.4.25.15mdk-1-1mdk.i586.rpm
 8231bed47849ee958629d83568da47b7  corporate/3.0/RPMS/kernel-p3-smp-64GB-2.4.25.15mdk-1-1mdk.i586.rpm
 6a614b0ce30bf0b4f4b50e21792e8bdb  corporate/3.0/RPMS/kernel-smp-2.4.25.15mdk-1-1mdk.i586.rpm
 0ad53697afef69ca13a0fc792c6efd9b  corporate/3.0/RPMS/kernel-source-2.4.25-15mdk.i586.rpm
 fd3c84e8920a33682fa3715d7668addc  corporate/3.0/SRPMS/kernel-2.4.25.15mdk-1-1mdk.src.rpm

Corporate Server 3.0/X86_64

 88f9773354bd930b5c031104cf456347  x86_64/corporate/3.0/RPMS/kernel-2.4.25.15mdk-1-1mdk.x86_64.rpm
 bc0227f1bd2cc07e87dd4163cbffae98  x86_64/corporate/3.0/RPMS/kernel-smp-2.4.25.15mdk-1-1mdk.x86_64.rpm
 50b06a0b86937e86c62cc010c353df5d  x86_64/corporate/3.0/RPMS/kernel-source-2.4.25-15mdk.x86_64.rpm
 fd3c84e8920a33682fa3715d7668addc  x86_64/corporate/3.0/SRPMS/kernel-2.4.25.15mdk-1-1mdk.src.rpm

References

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-2607
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1767
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2553
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3274
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3275
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3806
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0096

Upgrade

To upgrade automatically, use MandrivaUpdate.

Verification

Please verify the update prior to upgrading to ensure the integrity of the downloaded package. You can do this with the command :

		rpm --checksig package.rpm
		

You can get the GPG public key of the Mandriva Security Team to verify the GPG signature of each RPM.

If you use MandrivaUpdate, the verification of md5 checksum and GPG signature is performed automatically for you.