Ubuntu Update for linux USN-4135-1

Technical Details

Severity Level:

High Severity

CVSS Score:

7.2

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

Summary:
The remote host is missing an update for the 'linux' Linux Distribution Package(s) announced via the USN-4135-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS. (CVE-2019-14835) It was discovered that the Linux kernel on PowerPC architectures did not properly handle Facility Unavailable exceptions in some situations. A local attacker could use this to expose sensitive information. (CVE-2019-15030) It was discovered that the Linux kernel on PowerPC architectures did not properly handle exceptions on interrupts in some situations. A local attacker could use this to expose sensitive information. (CVE-2019-15031)

Affected Versions:
'linux' Linux Distribution Package(s) on Ubuntu 19.04, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Family:

Ubuntu Local Security Checks

Creation Time:

2019-09-19 02:03:10

Modification Time:

2019-09-20 05:25:28

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NVD CVE ID:
CVE-2019-14835
CVE-2019-15030
CVE-2019-15031

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