Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-2636-1)

medium Nessus Plugin ID 84123

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-2636-1 advisory.

- The ext4_zero_range function in fs/ext4/extents.c in the Linux kernel before 4.1 allows local users to cause a denial of service (BUG) via a crafted fallocate zero-range request. (CVE-2015-0275)

- The ping_unhash function in net/ipv4/ping.c in the Linux kernel before 4.0.3 does not initialize a certain list data structure during an unhash operation, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) by leveraging the ability to make a SOCK_DGRAM socket system call for the IPPROTO_ICMP or IPPROTO_ICMPV6 protocol, and then making a connect system call after a disconnect. (CVE-2015-3636)

- Array index error in the tcm_vhost_make_tpg function in drivers/vhost/scsi.c in the Linux kernel before 4.0 might allow guest OS users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted VHOST_SCSI_SET_ENDPOINT ioctl call. NOTE: the affected function was renamed to vhost_scsi_make_tpg before the vulnerability was announced. (CVE-2015-4036)

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-2636-1

Plugin Details

Severity: Medium

ID: 84123

File Name: ubuntu_USN-2636-1.nasl

Version: 2.17

Type: local

Agent: unix

Published: 6/11/2015

Updated: 1/9/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, 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-2015-4036

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS Score Source: CVE-2015-0275

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-20-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-20-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-20-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-20-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-20-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-20-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.19.0-20-powerpc64-smp, cpe:/o:canonical:ubuntu_linux:14.04:-:lts

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/10/2015

Vulnerability Publication Date: 8/5/2015

Reference Information

CVE: CVE-2015-0275, CVE-2015-3636, CVE-2015-4036

USN: 2636-1