Executive Summary

Summary
Title CUPS vulnerabilities
Informations
NameUSN-3713-1First vendor Publication2018-07-11
VendorUbuntuLast vendor Modification2018-07-11
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score4.6Attack RangeLocal
Cvss Impact Score6.4Attack ComplexityLow
Cvss Expoit Score3.9AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 18.04 LTS - Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in CUPS.

Software Description: - cups: Common UNIX Printing System(tm)

Details:

It was discovered that CUPS incorrectly handled certain print jobs with invalid usernames. A remote attacker could possibly use this issue to cause CUPS to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 17.10 and Ubuntu 18.04 LTS. (CVE-2017-18248)

Dan Bastone discovered that the CUPS dnssd backend incorrectly handled certain environment variables. A local attacker could possibly use this issue to escalate privileges. (CVE-2018-4180)

Eric Rafaloff and John Dunlap discovered that CUPS incorrectly handled certain include directives. A local attacker could possibly use this issue to read arbitrary files. (CVE-2018-4181)

Dan Bastone discovered that the CUPS AppArmor profile incorrectly confined the dnssd backend. A local attacker could possibly use this issue to escape confinement. (CVE-2018-6553)

Update instructions:

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

Ubuntu 18.04 LTS:
cups 2.2.7-1ubuntu2.1

Ubuntu 17.10:
cups 2.2.4-7ubuntu3.1

Ubuntu 16.04 LTS:
cups 2.1.3-4ubuntu0.5

Ubuntu 14.04 LTS:
cups 1.7.2-0ubuntu1.10

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

References:
https://usn.ubuntu.com/usn/usn-3713-1
CVE-2017-18248, CVE-2018-4180, CVE-2018-4181, CVE-2018-6553

Package Information:
https://launchpad.net/ubuntu/+source/cups/2.2.7-1ubuntu2.1
https://launchpad.net/ubuntu/+source/cups/2.2.4-7ubuntu3.1
https://launchpad.net/ubuntu/+source/cups/2.1.3-4ubuntu0.5
https://launchpad.net/ubuntu/+source/cups/1.7.2-0ubuntu1.10

Original Source

Url : http://www.ubuntu.com/usn/USN-3713-1

CWE : Common Weakness Enumeration

%idName
50 %CWE-264Permissions, Privileges, and Access Controls
50 %CWE-20Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application132
Application1
Os4
Os2

Nessus® Vulnerability Scanner

DateDescription
2018-07-16Name : The remote Debian host is missing a security update.
File : debian_DLA-1426.nasl - Type : ACT_GATHER_INFO
2018-07-12Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4243.nasl - Type : ACT_GATHER_INFO
2018-07-05Name : The remote Debian host is missing a security update.
File : debian_DLA-1412.nasl - Type : ACT_GATHER_INFO
2018-05-29Name : The remote Debian host is missing a security update.
File : debian_DLA-1387.nasl - Type : ACT_GATHER_INFO
2018-04-10Name : The remote Fedora host is missing a security update.
File : fedora_2018-99f551e4ff.nasl - Type : ACT_GATHER_INFO
2018-04-10Name : The remote Fedora host is missing a security update.
File : fedora_2018-ec5f10e626.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
DateInformations
2018-10-10 21:21:58
  • Multiple Updates
2018-08-10 21:21:57
  • Multiple Updates
2018-07-11 21:19:00
  • First insertion