Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2013)

Medium Nessus Plugin ID 68673

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

Description of changes:

* CVE-2011-4086: Denial of service in journaling block device.

The journal block device assumed that a buffer marked as unwritten or delay could be live without checking if the buffer was mapped.

An unprivileged local user could use this flaw to crash the system.


* CVE-2012-1601: Denial of service in KVM VCPU creation.

Inconsistent state in the creation of KVM virtual CPU's could lead to NULL pointer dereferences. A unprivileged local user could use this flaw to crash the system.


[2.6.39-100.7.1.el6uek]
- KVM: Ensure all vcpus are consistent with in-kernel irqchip settings (Avi Kivity) [Bugdb: 13871] {CVE-2012-1601}
- jbd2: clear BH_Delay BH_Unwritten in journal_unmap_buffer (Eric Sandeen) [Bugdb: 13871] {CVE-2011-4086}

Solution

Update the affected unbreakable enterprise kernel packages.

See Also

https://oss.oracle.com/pipermail/el-errata/2012-May/002820.html

https://oss.oracle.com/pipermail/el-errata/2012-May/002821.html

Plugin Details

Severity: Medium

ID: 68673

File Name: oraclelinux_ELSA-2012-2013.nasl

Version: 1.8

Type: local

Agent: unix

Published: 2013/07/12

Updated: 2019/09/30

Dependencies: 122878, 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-firmware, cpe:/o:oracle:linux:5, cpe:/o:oracle:linux:6

Required KB Items: Host/local_checks_enabled, Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2012/05/21

Vulnerability Publication Date: 2012/05/17

Reference Information

CVE: CVE-2011-4086, CVE-2012-1601