Detections
Analytics
Oracle Linux 5 : kernel (ELSA-2013-0621-1)
medium Nessus Plugin ID 68784
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Synopsis
The remote Oracle Linux host is missing one or more security updates.Description
From Red Hat Security Advisory 2013:0621 :Updated kernel packages that fix two security issues are now available for Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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 flaw was found in the way file permission checks for the '/dev/cpu/[x]/msr' files were performed in restricted root environments (for example, when using a capability-based security model). A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register. (CVE-2013-0268, Important)
* A race condition was found in the way the Linux kernel's ptrace implementation handled PTRACE_SETREGS requests when the debuggee was woken due to a SIGKILL signal instead of being stopped. A local, unprivileged user could use this flaw to escalate their privileges.
(CVE-2013-0871, Important)
Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
Solution
Update the affected kernel packages.See Also
https://oss.oracle.com/pipermail/el-errata/2013-March/003357.html
Plugin Details
Severity: Medium
ID: 68784
File Name: oraclelinux_ELSA-2013-0621-1.nasl
Version: 1.8
Type: local
Agent: unix
Published: 7/12/2013
Updated: 1/14/2021
Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.9
Temporal Score: 5.7
Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel-xen, cpe:/o:oracle:linux:5, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-pae-devel, p-cpe:/a:oracle:linux:kernel-xen-devel, p-cpe:/a:oracle:linux:kernel-pae, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-doc, p-cpe:/a:oracle:linux:kernel
Required KB Items: Host/local_checks_enabled, Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/12/2013
Exploitable With
CANVAS (CANVAS)
Reference Information
CVE: CVE-2013-0268, CVE-2013-0871
RHSA: 2013:0621