Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2014-3034)

critical Nessus Plugin ID 74101
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Synopsis

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

Description

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-3034 advisory.

- The microcode on AMD 16h 00h through 0Fh processors does not properly handle the interaction between locked instructions and write-combined memory types, which allows local users to cause a denial of service (system hang) via a crafted application, aka the errata 793 issue. (CVE-2013-6885)

- The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the LECHO & !OPOST case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings. (CVE-2014-0196)

- The ip6_route_add function in net/ipv6/route.c in the Linux kernel through 3.13.6 does not properly count the addition of routes, which allows remote attackers to cause a denial of service (memory consumption) via a flood of ICMPv6 Router Advertisement packets. (CVE-2014-2309)

- Buffer overflow in the complete_emulated_mmio function in arch/x86/kvm/x86.c in the Linux kernel before 3.13.6 allows guest OS users to execute arbitrary code on the host OS by leveraging a loop that triggers an invalid memory copy affecting certain cancel_work_item data. (CVE-2014-0049)

- The compat_sys_recvmmsg function in net/compat.c in the Linux kernel before 3.13.2, when CONFIG_X86_X32 is enabled, allows local users to gain privileges via a recvmmsg system call with a crafted timeout pointer parameter. (CVE-2014-0038)

- Array index error in the kvm_vm_ioctl_create_vcpu function in virt/kvm/kvm_main.c in the KVM subsystem in the Linux kernel through 3.12.5 allows local users to gain privileges via a large id value.
(CVE-2013-4587)

- The mISDN_sock_recvmsg function in drivers/isdn/mISDN/socket.c in the Linux kernel before 3.12.4 does not ensure that a certain length value is consistent with the size of an associated data structure, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call. (CVE-2013-7266)

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-2014-3034.html

Plugin Details

Severity: Critical

ID: 74101

File Name: oraclelinux_ELSA-2014-3034.nasl

Version: 1.24

Type: local

Agent: unix

Published: 5/20/2014

Updated: 9/8/2021

Dependencies: linux_alt_patch_detect.nasl, ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2014-0049

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:6, p-cpe:/a:oracle:linux:dtrace-modules-3.8.13-35.el6uek, p-cpe:/a:oracle:linux:dtrace-modules-headers, p-cpe:/a:oracle:linux:dtrace-modules-provider-headers, 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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/19/2014

Vulnerability Publication Date: 11/27/2013

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Linux Kernel recvmmsg Privilege Escalation)

Reference Information

CVE: CVE-2013-2929, CVE-2013-4587, CVE-2013-6383, CVE-2013-6885, CVE-2013-7263, CVE-2013-7265, CVE-2013-7266, CVE-2014-0038, CVE-2014-0049, CVE-2014-0055, CVE-2014-0069, CVE-2014-0077, CVE-2014-0101, CVE-2014-0196, CVE-2014-2309, CVE-2014-2523, CVE-2014-2851

BID: 63983, 64328, 64743, 65255, 65909, 66095, 67199, 67282