Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-2690-1)

high Nessus Plugin ID 85078

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2690-1 advisory.

- Memory leak in the __key_link_end function in security/keys/keyring.c in the Linux kernel before 4.1.4 allows local users to cause a denial of service (memory consumption) via many add_key system calls that refer to existing keys. (CVE-2015-1333)

- arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform improperly relies on espfix64 during nested NMI processing, which allows local users to gain privileges by triggering an NMI within a certain instruction window. (CVE-2015-3290)

- arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.
(CVE-2015-3291)

- arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform mishandles IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI. (CVE-2015-5157)

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

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-2690-1

Plugin Details

Severity: High

ID: 85078

File Name: ubuntu_USN-2690-1.nasl

Version: 2.13

Type: local

Agent: unix

Published: 7/29/2015

Updated: 1/9/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2015-5157

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-25-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-25-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-25-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-25-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-25-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-25-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-25-powerpc64-smp, cpe:/o:canonical:ubuntu_linux:14.04:-:lts

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/28/2015

Vulnerability Publication Date: 8/31/2015

Reference Information

CVE: CVE-2015-1333, CVE-2015-3290, CVE-2015-3291, CVE-2015-5157

USN: 2690-1