Executive Summary

Summary
Title Exim vulnerability
Informations
NameUSN-4124-1First vendor Publication2019-09-06
VendorUbuntuLast vendor Modification2019-09-06
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score10Attack RangeNetwork
Cvss Impact Score10Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS

Summary:

Exim could be made to run programs as an administrator if it received specially crafted network traffic.

Software Description: - exim4: Exim is a mail transport agent

Details:

It was discovered that Exim incorrectly handled certain decoding operations. A remote attacker could possibly use this issue to execute arbitrary commands.

Update instructions:

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

Ubuntu 19.04:
exim4-daemon-heavy 4.92-4ubuntu1.3
exim4-daemon-light 4.92-4ubuntu1.3

Ubuntu 18.04 LTS:
exim4-daemon-heavy 4.90.1-1ubuntu1.4
exim4-daemon-light 4.90.1-1ubuntu1.4

Ubuntu 16.04 LTS:
exim4-daemon-heavy 4.86.2-2ubuntu2.5
exim4-daemon-light 4.86.2-2ubuntu2.5

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4124-1
CVE-2019-15846, https://launchpad.net/bugs/1843041

Package Information:
https://launchpad.net/ubuntu/+source/exim4/4.92-4ubuntu1.3
https://launchpad.net/ubuntu/+source/exim4/4.90.1-1ubuntu1.4
https://launchpad.net/ubuntu/+source/exim4/4.86.2-2ubuntu2.5

Original Source

Url : http://www.ubuntu.com/usn/USN-4124-1

CWE : Common Weakness Enumeration

%idName
100 %CWE-119Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application133
Os3

Alert History

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0
1
2
3
DateInformations
2019-09-17 12:14:08
  • Multiple Updates
2019-09-06 21:22:29
  • Multiple Updates
2019-09-06 17:22:17
  • Multiple Updates
2019-09-06 17:19:00
  • First insertion