The cipso_v4_validate function in net/ipv4/cipso_ipv4.c in the Linux kernel before 3.4.8 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via an IPOPT_CIPSO IP_OPTIONS setsockopt system call.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-0496 advisory.

    - [virt] xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests (Andrew Jones) [896050]     {CVE-2013-0190}
    - [block] sg_io: use different default filters for each device class (Paolo Bonzini) [875361]     {CVE-2012-4542}
    - [block] sg_io: prepare for adding per-device-type filters (Paolo Bonzini) [875361] {CVE-2012-4542}
    - [virt] kvm: invalid opcode oops on SET_SREGS with OSXSAVE bit set (Petr Matousek) [862904]     {CVE-2012-4461}
    - [fs] exec: do not leave bprm->interp on stack (Josh Poimboeuf) [880146] {CVE-2012-4530}
    - [fs] exec: use -ELOOP for max recursion depth (Josh Poimboeuf) [880146] {CVE-2012-4530}
    - [kernel] kmod: make __request_module() killable (Oleg Nesterov) [819529] {CVE-2012-4398}
    - [kernel] kmod: introduce call_modprobe() helper (Oleg Nesterov) [819529] {CVE-2012-4398}
    - [kernel] usermodehelper: implement UMH_KILLABLE (Oleg Nesterov) [819529] {CVE-2012-4398}
    - [kernel] usermodehelper: introduce umh_complete(sub_info) (Oleg Nesterov) [819529] {CVE-2012-4398}
    - [kernel] call_usermodehelper: simplify/fix UMH_NO_WAIT case (Oleg Nesterov) [819529] {CVE-2012-4398}
    - [kernel] wait_for_helper: SIGCHLD from user-space can lead to use-after-free (Oleg Nesterov) [819529]     {CVE-2012-4398}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2013:0496 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux     operating system.

    This update fixes the following security issues:

    * A race condition was found in the way asynchronous I/O and fallocate()     interacted when using the ext4 file system. A local, unprivileged user     could use this flaw to expose random data from an extent whose data blocks     have not yet been written, and thus contain data from a deleted file.
    (CVE-2012-4508, Important)

    * A flaw was found in the way the vhost kernel module handled descriptors     that spanned multiple regions. A privileged guest user in a KVM guest could     use this flaw to crash the host or, potentially, escalate their privileges     on the host. (CVE-2013-0311, Important)

    * It was found that the default SCSI command filter does not accommodate     commands that overlap across device classes. A privileged guest user could     potentially use this flaw to write arbitrary data to a LUN that is     passed-through as read-only. (CVE-2012-4542, Moderate)

    * A flaw was found in the way the xen_failsafe_callback() function in the     Linux kernel handled the failed iret (interrupt return) instruction     notification from the Xen hypervisor. An unprivileged user in a 32-bit     para-virtualized guest could use this flaw to crash the guest.
    (CVE-2013-0190, Moderate)

    * A flaw was found in the way pmd_present() interacted with PROT_NONE     memory ranges when transparent hugepages were in use. A local, unprivileged     user could use this flaw to crash the system. (CVE-2013-0309, Moderate)

    * A flaw was found in the way CIPSO (Common IP Security Option) IP options     were validated when set from user mode. A local user able to set CIPSO IP     options on the socket could use this flaw to crash the system.
    (CVE-2013-0310, Moderate)

    Red Hat would like to thank Theodore Ts'o for reporting CVE-2012-4508, and     Andrew Cooper of Citrix for reporting CVE-2013-0190. Upstream acknowledges     Dmitry Monakhov as the original reporter of CVE-2012-4508. The     CVE-2012-4542 issue was discovered by Paolo Bonzini of Red Hat.

    This update also fixes several hundred bugs and adds enhancements. Refer to     the Red Hat Enterprise Linux 6.4 Release Notes for information on the most     significant of these changes, and the Technical Notes for further     information, both linked to in the References.

    All Red Hat Enterprise Linux 6 users are advised to install these updated     packages, which correct these issues, and fix the bugs and add the     enhancements noted in the Red Hat Enterprise Linux 6.4 Release Notes and     Technical Notes. The system must be rebooted for this update to take     effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated kernel packages that fix multiple security issues, address several hundred bugs, and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 6. This is the fourth regular update.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* A race condition was found in the way asynchronous I/O and fallocate() interacted when using the ext4 file system. A local, unprivileged user could use this flaw to expose random data from an extent whose data blocks have not yet been written, and thus contain data from a deleted file. (CVE-2012-4508, Important)

* A flaw was found in the way the vhost kernel module handled descriptors that spanned multiple regions. A privileged guest user in a KVM guest could use this flaw to crash the host or, potentially, escalate their privileges on the host. (CVE-2013-0311, Important)

* It was found that the default SCSI command filter does not accommodate commands that overlap across device classes. A privileged guest user could potentially use this flaw to write arbitrary data to a LUN that is passed-through as read-only. (CVE-2012-4542, Moderate)

* A flaw was found in the way the xen_failsafe_callback() function in the Linux kernel handled the failed iret (interrupt return) instruction notification from the Xen hypervisor. An unprivileged user in a 32-bit para-virtualized guest could use this flaw to crash the guest. (CVE-2013-0190, Moderate)

* A flaw was found in the way pmd_present() interacted with PROT_NONE memory ranges when transparent hugepages were in use. A local, unprivileged user could use this flaw to crash the system.
(CVE-2013-0309, Moderate)

* A flaw was found in the way CIPSO (Common IP Security Option) IP options were validated when set from user mode. A local user able to set CIPSO IP options on the socket could use this flaw to crash the system. (CVE-2013-0310, Moderate)

Red Hat would like to thank Theodore Ts'o for reporting CVE-2012-4508, and Andrew Cooper of Citrix for reporting CVE-2013-0190. Upstream acknowledges Dmitry Monakhov as the original reporter of CVE-2012-4508. The CVE-2012-4542 issue was discovered by Paolo Bonzini of Red Hat.

This update also fixes several hundred bugs and adds enhancements.
Refer to the Red Hat Enterprise Linux 6.4 Release Notes for information on the most significant of these changes, and the Technical Notes for further information, both linked to in the References.

All Red Hat Enterprise Linux 6 users are advised to install these updated packages, which correct these issues, and fix the bugs and add the enhancements noted in the Red Hat Enterprise Linux 6.4 Release Notes and Technical Notes. The system must be rebooted for this update to take effect.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2013-0496.

ID	Name	Product	Family	Severity
83611	SUSE SLES11 Security Update : kernel (SUSE-SU-2014:0287-1)	Nessus	SuSE Local Security Checks	high
68739	Oracle Linux 6 : kernel (ELSA-2013-0496)	Nessus	Oracle Linux Local Security Checks	medium
65171	RHEL 6 : Red Hat Enterprise Linux 6 kernel update (Important) (RHSA-2013:0496)	Nessus	Red Hat Local Security Checks	medium
65134	CentOS 6 : kernel (CESA-2013:0496)	Nessus	CentOS Local Security Checks	medium
801535	CentOS RHSA-2013-0496 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2013-0310

high

Tenable Plugins

high

medium

medium

medium

high