OracleVM 2.1 : kernel (OVMSA-2009-0014)

This script is Copyright (C) 2014-2017 Tenable Network Security, Inc.


Synopsis :

The remote OracleVM host is missing one or more security updates.

Description :

The remote OracleVM system is missing necessary patches to address
critical security updates :

CVE-2009-1192 The (1) agp_generic_alloc_page and (2)
agp_generic_alloc_pages functions in drivers/char/agp/generic.c in the
agp subsystem in the Linux kernel before 2.6.30-rc3 do not zero out
pages that may later be available to a user-space process, which
allows local users to obtain sensitive information by reading these
pages.

CVE-2009-1072 nfsd in the Linux kernel before 2.6.28.9 does not drop
the CAP_MKNOD capability before handling a user request in a thread,
which allows local users to create device nodes, as demonstrated on a
filesystem that has been exported with the root_squash option.

CVE-2009-1758 The hypervisor_callback function in Xen, possibly before
3.4.0, as applied to the Linux kernel 2.6.30-rc4, 2.6.18, and probably
other versions allows guest user applications to cause a denial of
service (kernel oops) of the guest OS by triggering a segmentation
fault in 'certain address ranges.'

CVE-2009-1439 Buffer overflow in fs/cifs/connect.c in CIFS in the
Linux kernel 2.6.29 and earlier allows remote attackers to cause a
denial of service (crash) via a long nativeFileSystem field in a Tree
Connect response to an SMB mount request.

CVE-2009-1633 Multiple buffer overflows in the cifs subsystem in the
Linux kernel before 2.6.29.4 allow remote CIFS servers to cause a
denial of service (memory corruption) and possibly have unspecified
other impact via (1) a malformed Unicode string, related to Unicode
string area alignment in fs/cifs/sess.c or (2) long Unicode
characters, related to fs/cifs/cifssmb.c and the cifs_readdir function
in fs/cifs/readdir.c.

CVE-2009-1630 The nfs_permission function in fs/nfs/dir.c in the NFS
client implementation in the Linux kernel 2.6.29.3 and earlier, when
atomic_open is available, does not check execute (aka EXEC or
MAY_EXEC) permission bits, which allows local users to bypass
permissions and execute files, as demonstrated by files on an NFSv4
fileserver.

- [agp] zero pages before sending to userspace (Jiri Olsa)
[497025 497026] (CVE-2009-1192)

- [misc] add some long-missing capabilities to CAP_FS_MASK
(Eric Paris) [499075 497271 499076 497272]
(CVE-2009-1072)

- [x86] xen: fix local denial of service (Chris
Lalancette) [500950 500951] (CVE-2009-1758)

- [fs] cifs: unicode alignment and buffer sizing problems
(Jeff Layton) [494279 494280] (CVE-2009-1439)

- [fs] cifs: buffer overruns when converting strings (Jeff
Layton) [496576 496577] (CVE-2009-1633)

- [fs] cifs: fix error handling in parse_DFS_referrals
(Jeff Layton) [496576 496577] (CVE-2009-1633)

- [fs] cifs: fix pointer and checks in cifs_follow_symlink
(Jeff Layton) [496576 496577] (CVE-2009-1633)

- [nfs] v4: client handling of MAY_EXEC in nfs_permission
(Peter Staubach) [500301 500302] (CVE-2009-1630)

- backport cifs support from OEL5U3

See also :

https://oss.oracle.com/pipermail/oraclevm-errata/2009-July/000027.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: OracleVM Local Security Checks

Nessus Plugin ID: 79460 ()

Bugtraq ID: 34205
34453
34612
34673
34934
34957

CVE ID: CVE-2009-1072
CVE-2009-1192
CVE-2009-1439
CVE-2009-1630
CVE-2009-1633
CVE-2009-1758

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