Executive Summary

Summary
Title Linux kernel (Trusty HWE) vulnerability
Informations
NameUSN-3908-2First vendor Publication2019-03-13
VendorUbuntuLast vendor Modification2019-03-13
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score4.4Attack RangeLocal
Cvss Impact Score6.4Attack ComplexityMedium
Cvss Expoit Score3.4AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 ESM

Summary:

The system could be made to run programs as an administrator.

Software Description: - linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM

Details:

USN-3908-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM.

Jann Horn discovered a race condition in the fork() system call in the Linux kernel. A local attacker could use this to gain access to services that cache authorizations.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 ESM:
linux-image-3.13.0-166-generic 3.13.0-166.216~precise1
linux-image-3.13.0-166-generic-lpae 3.13.0-166.216~precise1
linux-image-3.13.0-166-lowlatency 3.13.0-166.216~precise1
linux-image-generic-lpae-lts-trusty 3.13.0.166.156
linux-image-generic-lts-trusty 3.13.0.166.156

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References:
https://usn.ubuntu.com/usn/usn-3908-2
https://usn.ubuntu.com/usn/usn-3908-1
CVE-2019-6133

Original Source

Url : http://www.ubuntu.com/usn/USN-3908-2

CWE : Common Weakness Enumeration

%idName
100 %CWE-284Access Control (Authorization) Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application1
Os5
Os1
Os2
Os2
Os1
Os1
Os1
Os2

Alert History

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0
DateInformations
2019-03-14 21:19:06
  • First insertion