Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2011-2037)

high Nessus Plugin ID 68425

Synopsis

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

Description

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-2037 advisory.

- The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, which allows local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write system calls. (CVE-2011-1020)

- Heap-based buffer overflow in the is_gpt_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38 and earlier allows physically proximate attackers to cause a denial of service (OOPS) or possibly have unspecified other impact via a crafted size of the EFI GUID partition-table header on removable media.
(CVE-2011-1577)

- The cifs_find_smb_ses function in fs/cifs/connect.c in the Linux kernel before 2.6.36 does not properly determine the associations between users and sessions, which allows local users to bypass CIFS share authentication by leveraging a mount of a share by a different user. (CVE-2011-1585)

- fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password. (CVE-2011-2495)

- The qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call. (CVE-2011-2525)

- fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations. (CVE-2011-3638)

- The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and updating a negative key into a fully instantiated key. (CVE-2011-4110)

- Stack-based buffer overflow in the hfs_mac2asc function in fs/hfs/trans.c in the Linux kernel 2.6 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via an HFS image with a crafted len field. (CVE-2011-4330)

- The ptrace_setxregs function in arch/xtensa/kernel/ptrace.c in the Linux kernel before 3.1 does not validate user-space pointers, which allows local users to obtain sensitive information from kernel memory locations via a crafted PTRACE_SETXTREGS request. (CVE-2011-2707)

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

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2011-2037.html

Plugin Details

Severity: High

ID: 68425

File Name: oraclelinux_ELSA-2011-2037.nasl

Version: 1.20

Type: local

Agent: unix

Published: 7/12/2013

Updated: 9/8/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

Temporal Vector: E:ND/RL:OF/RC:C

CVSS Score Source: CVE-2011-4330

Vulnerability Information

CPE: cpe:/o:oracle:linux:5, cpe:/o:oracle:linux:6, 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:ofa-2.6.32-300.3.1.el5uek, p-cpe:/a:oracle:linux:ofa-2.6.32-300.3.1.el5uekdebug, p-cpe:/a:oracle:linux:ofa-2.6.32-300.3.1.el6uek, p-cpe:/a:oracle:linux:ofa-2.6.32-300.3.1.el6uekdebug

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/14/2011

Vulnerability Publication Date: 5/10/2010

Reference Information

CVE: CVE-2011-1017, CVE-2011-1020, CVE-2011-1577, CVE-2011-1585, CVE-2011-2182, CVE-2011-2495, CVE-2011-2525, CVE-2011-2707, CVE-2011-2909, CVE-2011-3347, CVE-2011-3638, CVE-2011-4110, CVE-2011-4330

BID: 46512, 46567, 47343, 47381, 48641, 48817, 49408, 49411, 50312, 50322, 50750, 50755