Executive Summary

Summary
Title Linux kernel (Trusty HWE) vulnerability
Informations
Name USN-3908-2 First vendor Publication 2019-03-13
Vendor Ubuntu Last vendor Modification 2019-03-13
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.4 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None 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

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 5
Os 1
Os 2
Os 2
Os 2
Os 1
Os 1
Os 2

Alert History

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