[ MDVSA-2008:174 ] kernel

[dude67]

kernel

Some vulnerabilities were discovered and corrected in the Linux
2.6 kernel:

Linux kernel before 2.6.22.17, when using certain drivers that register
a fault handler that does not perform range checks, allows local users
to access kernel memory via an out-of-range offset. (CVE-2008-0007)

The asn1 implementation in (a) the Linux kernel 2.4 before 2.4.36.6 and
2.6 before 2.6.25.5, as used in the cifs and ip_nat_snmp_basic modules;
and (b) the gxsnmp package; does not properly validate length values
during decoding of ASN.1 BER data, which allows remote attackers
to cause a denial of service (crash) or execute arbitrary code via
(1) a length greater than the working buffer, which can lead to an
unspecified overflow; (2) an oid length of zero, which can lead to
an off-by-one error; or (3) an indefinite length for a primitive
encoding. (CVE-2008-1673)

Linux kernel 2.6.18, and possibly other versions, when running on
AMD64 architectures, allows local users to cause a denial of service
(crash) via certain ptrace calls. (CVE-2008-1615)

Memory leak in the ipip6_rcv function in net/ipv6/sit.c in the
Linux kernel before 2.6.25.3 allows remote attackers to cause a
denial of service (memory consumption) via network traffic to a
Simple Internet Transition (SIT) tunnel interface, related to the
pskb_may_pull and kfree_skb functions, and management of an skb
reference count. (CVE-2008-2136)

Integer overflow in the sctp_getsockopt_local_addrs_old function in
net/sctp/socket.c in the Stream Control Transmission Protocol (sctp)
functionality in the Linux kernel before 2.6.25.9 allows local users
to cause a denial of service (resource consumption and system outage)
via vectors involving a large addr_num field in an sctp_getaddrs_old
data structure. (CVE-2008-2826)

arch/x86_64/lib/copy_user.S in the Linux kernel before 2.6.19 on
some AMD64 systems does not erase destination memory locations after
an exception during kernel memory copy, which allows local users to
obtain sensitive information. (CVE-2008-2729)

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

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

http://cve.mitre.org/cgi-bin/cvename.cg ... -2008-0007
http://cve.mitre.org/cgi-bin/cvename.cg ... -2008-1673
http://cve.mitre.org/cgi-bin/cvename.cg ... -2008-1615
http://cve.mitre.org/cgi-bin/cvename.cg ... -2008-2136
http://cve.mitre.org/cgi-bin/cvename.cg ... -2008-2826
http://cve.mitre.org/cgi-bin/cvename.cg ... -2008-2729
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