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Linux Kernel Multiple Vulnerabilities
Secunia Advisory: SA18216
Release Date: 2006-01-04
Last Update: 2006-05-04
Popularity: 11,060 views

Critical:
Less critical
Impact: Unknown
Exposure of sensitive information
DoS
Where: Local system
Solution Status: Vendor Patch

OS:Linux Kernel 2.6.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Some vulnerabilities have been reported in the Linux Kernel, which potentially can be exploited by malicious, local users to cause a DoS (Denial of Service), gain knowledge of potentially sensitive information, bypass certain security restrictions, and with unknown impact.

1) An error in "mm/mempolicy.c" when handling the policy system call may cause the referencing of undefined nodes. This can potentially be exploited by local users to cause kernel panic via a "set_mempolicy()" call with a 0 bitmask.

2) An error in "net/ipv4/fib_frontend.c" when validating the header and payload of fib_lookup netlink messages may result in illegal memory references via malformed netlink messages.

3) An off-by-one error in "kernel/sysctl.c" may cause the user supplied buffer to be overflowed with a single NULL byte when the output string is too large to fit in the buffer.

4) A boundary error in the CA-driver for TwinHan DST Frontend/Card, "drivers/media/dvb/bt8xx/dst_ca.c", may cause a buffer overflow when more than 8 bytes are read into an 8 byte long array.

5) Missing validation of the supplied file offset value in the procfs code can be exploited by local users to read kernel memory, which may contain sensitive information.

6) A validation error in "/fs/nfsd/nfs2acl.c" may be exploited by malicious users to set ACLs on NFS filesystems even when the filesystems are exported read-only.

The vulnerabilities have been reported in the 2.6 kernel branch.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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