Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2007)
high Nessus Plugin ID 68670
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Synopsis
The remote Oracle Linux host is missing one or more security updates.Description
Description of changes:* CVE-2012-0879: Denial of service in CLONE_IO.
CLONE_IO reference counting error could be exploited by an unprivileged local user to cause denial of service.
* CVE-2012-1097: NULL pointer dereference in the ptrace subsystem.
Under certain circumstances, ptrace-ing a process could lead to a NULL pointer dereference and kernel panic.
* CVE-2012-1090: Denial of service in the CIFS filesystem reference counting.
Under certain circumstances, the CIFS filesystem would open a file on lookup. If the file was determined later to be a FIFO or any other special file the file handle would be leaked, leading to reference counting mismatch and a kernel OOPS on unmount.
An unprivileged local user could use this flaw to crash the system.
kernel-uek:
[2.6.32-300.21.1.el6uek]
- regset: Return -EFAULT, not -EIO, on host-side memory fault (H. Peter Anvin) CVE-2012-1097
- regset: Prevent NULL pointer reference on readonly regsets (H. Peter Anvin) CVE-2012-1097
- cifs: fix dentry refcount leak when opening a FIFO on lookup (Jeff Layton) CVE-2012-1090
- block: Fix io_context leak after failure of clone with CLONE_IO (Louis Rilling) CVE-2012-0879
Solution
Update the affected unbreakable enterprise kernel packages.See Also
https://oss.oracle.com/pipermail/el-errata/2012-April/002764.html
https://oss.oracle.com/pipermail/el-errata/2012-April/002766.html
Plugin Details
Severity: High
ID: 68670
File Name: oraclelinux_ELSA-2012-2007.nasl
Version: 1.14
Type: local
Agent: unix
Published: 7/12/2013
Updated: 1/14/2021
Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: High
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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, p-cpe:/a:oracle:linux:kernel-uek-headers, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-300.21.1.el5uek, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-300.21.1.el5uekdebug, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-300.21.1.el6uek, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-300.21.1.el6uekdebug, p-cpe:/a:oracle:linux:ofa-2.6.32-300.21.1.el5uek, p-cpe:/a:oracle:linux:ofa-2.6.32-300.21.1.el5uekdebug, p-cpe:/a:oracle:linux:ofa-2.6.32-300.21.1.el6uek, p-cpe:/a:oracle:linux:ofa-2.6.32-300.21.1.el6uekdebug, 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: 4/23/2012
Vulnerability Publication Date: 5/17/2012