The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2659-1 advisory.

    Petr Sklenar discovered that the cups-filters texttopdf filter incorrectly handled line sizes. A remote     attacker could use this issue to cause a denial of service, or possibly execute arbitrary code as the lp     user. (CVE-2015-3258, CVE-2015-3279)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

A heap-based buffer overflow flaw and an integer overflow flaw leading to a heap-based buffer overflow were discovered in the way the texttopdf utility of cups-filter processed print jobs with a specially crafted line size. An attacker able to submit print jobs could use these flaws to crash texttopdf or, possibly, execute arbitrary code with the privileges of the 'lp' user. (CVE-2015-3258, CVE-2015-3279)

Notably, this update also fixes the following bug :

  - Previously, when polling CUPS printers from a CUPS     server, when a printer name contained an underscore (_),     the client displayed the name containing a hyphen (-)     instead. This made the print queue unavailable. With     this update, CUPS allows the underscore character in     printer names, and printers appear as shown on the CUPS     server as expected.

In addition, this update adds the following enhancement :

  - Now, the information from local and remote CUPS servers     is cached during each poll, and the CUPS server load is     reduced.

Updated cups-filters packages that fix two security issues, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The cups-filters packages contain back ends, filters, and other software that was once part of the core Common UNIX Printing System (CUPS) distribution but is now maintained independently.

A heap-based buffer overflow flaw and an integer overflow flaw leading to a heap-based buffer overflow were discovered in the way the texttopdf utility of cups-filter processed print jobs with a specially crafted line size. An attacker able to submit print jobs could use these flaws to crash texttopdf or, possibly, execute arbitrary code with the privileges of the 'lp' user. (CVE-2015-3258, CVE-2015-3279)

The CVE-2015-3258 issue was discovered by Petr Sklenar of Red Hat.

Notably, this update also fixes the following bug :

* Previously, when polling CUPS printers from a CUPS server, when a printer name contained an underscore (_), the client displayed the name containing a hyphen (-) instead. This made the print queue unavailable. With this update, CUPS allows the underscore character in printer names, and printers appear as shown on the CUPS server as expected. (BZ#1167408)

In addition, this update adds the following enhancement :

* Now, the information from local and remote CUPS servers is cached during each poll, and the CUPS server load is reduced. (BZ#1191691)

All cups-filters users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add this enhancement.

Stefan Cornelius from Red Hat reports :

A heap-based buffer overflow was discovered in the way the texttopdf utility of cups-filters processed print jobs with a specially crafted line size. An attacker being able to submit print jobs could exploit this flaw to crash texttopdf or, possibly, execute arbitrary code.

Till Kamppeter reports :

texttopdf: Fixed buffer overflow on size allocation of texttopdf when working with extremely small line sizes, which causes the size calculation to result in 0 (CVE-2015-3258, thanks to Stefan Cornelius from Red Hat for the patch).

cups-filters was updated to fix three security issues.

These security issues were fixed :

  - CVE-2015-2265: The remove_bad_chars function in     utils/cups-browsed.c in cups-filters before 1.0.66     allowed remote IPP printers to execute arbitrary     commands via consecutive shell metacharacters in the (1)     model or (2) PDL. NOTE: this vulnerability exists     because of an incomplete fix for CVE-2014-2707     (bsc#921753).

  - CVE-2015-3279: Texttopdf integer overflow (incomplete     fix for CVE-2015-3258) (bsc#937018).

  - CVE-2015-3258: Texttopdf heap-based buffer overflow     (bsc#936281).

It was discovered that the texttopdf utility, part of cups-filters, was susceptible to multiple heap-based buffer overflows due to improper handling of print jobs with a specially crafted line size.
This could allow remote attackers to crash texttopdf or possibly execute arbitrary code.

The remote host is affected by the vulnerability described in GLSA-201510-08 (cups-filters: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in cups-filters. Please       review the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to open a specially crafted print       job using cups-filters, possibly resulting in execution of arbitrary code       with the privileges of the process or a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

cups-filters was updated to fix two security issues.

These security issues were fixed :

  - CVE-2015-3279: Texttopdf integer overflow (incomplete     fix for CVE-2015-3258) (bsc#937018).

  - CVE-2015-3258: Texttopdf heap-based buffer overflow     (bsc#936281).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Petr Sklenar of Red Hat discovered that the texttopdf tool, part of cups filters, was susceptible to multiple heap-based buffer and integer overflows due to improper handling of print jobs. This could allow remote attackers to crash texttopdf or possibly execute arbitrary code.

For Debian 6 'Squeeze', this issue has been fixed in cups version 1.4.4-7+squeeze10. For Wheezy and Jessie, this has been fixed in the cups-filter package. We recommend you to upgrade your cups packages.

Learn more about the Debian Long Term Support (LTS) Project and how to apply these updates at: https://wiki.debian.org/LTS/

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-2360 advisory.

    - Fix heap-based buffer overflow in texttopdf filter (bug #1241242,       CVE-2015-3258, CVE-2015-3279).
    - Applied upstream patch to fix BrowseAllow parsing issue       (CVE-2014-4338, bug #1091568).

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
84564	Ubuntu 14.04 LTS : cups-filters vulnerabilities (USN-2659-1)	Nessus	Ubuntu Local Security Checks	7/7/2015	8/27/2024	critical
87553	Scientific Linux Security Update : cups-filters on SL7.x x86_64 (20151119)	Nessus	Scientific Linux Local Security Checks	12/22/2015	1/14/2021	high
87152	CentOS 7 : cups-filters (CESA-2015:2360)	Nessus	CentOS Local Security Checks	12/2/2015	1/4/2021	high
84484	FreeBSD : cups-filters -- buffer overflow in texttopdf size allocation (b19da422-1e02-11e5-b43d-002590263bf5)	Nessus	FreeBSD Local Security Checks	7/1/2015	1/6/2021	high
84756	openSUSE Security Update : cups-filters (openSUSE-2015-492)	Nessus	SuSE Local Security Checks	7/15/2015	1/19/2021	high
84598	Debian DSA-3303-1 : cups-filters - security update	Nessus	Debian Local Security Checks	7/8/2015	1/11/2021	high
86693	GLSA-201510-08 : cups-filters: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	11/2/2015	1/11/2021	high
85398	SUSE SLED12 / SLES12 Security Update : cups-filters (SUSE-SU-2015:1377-1)	Nessus	SuSE Local Security Checks	8/14/2015	1/6/2021	high
86984	RHEL 7 : cups-filters (RHSA-2015:2360)	Nessus	Red Hat Local Security Checks	11/20/2015	10/24/2019	high
86127	Debian DLA-314-1 : cups security update	Nessus	Debian Local Security Checks	9/25/2015	1/11/2021	high
87035	Oracle Linux 7 : cups-filters (ELSA-2015-2360)	Nessus	Oracle Linux Local Security Checks	11/24/2015	10/22/2024	critical

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