Executive Summary

Informations
Name CVE-2014-6055 First vendor Publication 2014-09-30
Vendor Cve Last vendor Modification 2020-10-23

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:N/AC:L/Au:S/C:P/I:P/A:P)
Cvss Base Score 6.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Multiple stack-based buffer overflows in the File Transfer feature in rfbserver.c in LibVNCServer 0.9.9 and earlier allow remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via a (1) long file or (2) directory name or the (3) FileTime attribute in a rfbFileTransferOffer message.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6055

CWE : Common Weakness Enumeration

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

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:27178
 
Oval ID: oval:org.mitre.oval:def:27178
Title: USN-2365-1 -- libvncserver vulnerabilities
Description: Several security issues were fixed in LibVNCServer.
Family: unix Class: patch
Reference(s): USN-2365-1
CVE-2014-6051
CVE-2014-6052
CVE-2014-6053
CVE-2014-6054
CVE-2014-6055
 Version: 3
Platform(s): Ubuntu 14.04
Ubuntu 12.04
 Product(s): libvncserver
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28039
 
Oval ID: oval:org.mitre.oval:def:28039
Title: RHSA-2014:1827 -- kdenetwork security update (Moderate)
Description: The kdenetwork packages contain networking applications for the K Desktop Environment (KDE). Krfb Desktop Sharing, which is a part of the kdenetwork package, is a server application that allows session sharing between users. Krfb uses the LibVNCServer library. A NULL pointer dereference flaw was found in the way LibVNCServer handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client. (CVE-2014-6053) A divide-by-zero flaw was found in the way LibVNCServer handled the scaling factor when it was set to "0". A remote attacker could use this flaw to crash the VNC server using a malicious VNC client. (CVE-2014-6054) Two stack-based buffer overflow flaws were found in the way LibVNCServer handled file transfers. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client. (CVE-2014-6055) Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges Nicolas Ruff as the original reporter. Note: Prior to this update, the kdenetwork packages used an embedded copy of the LibVNCServer library. With this update, the kdenetwork packages have been modified to use the system LibVNCServer packages. Therefore, the update provided by RHSA-2014:1826 must be installed to fully address the issues in krfb described above. All kdenetwork users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of the krfb server must be restarted for this update to take effect.
Family: unix Class: patch
Reference(s): RHSA-2014:1827
CESA-2014:1827
CVE-2014-6053
CVE-2014-6054
CVE-2014-6055
 Version: 5
Platform(s): Red Hat Enterprise Linux 7
CentOS Linux 7
 Product(s): kdenetwork
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28208
 
Oval ID: oval:org.mitre.oval:def:28208
Title: RHSA-2014:1826 -- libvncserver security update (Moderate)
Description: LibVNCServer is a library that allows for easy creation of VNC server or client functionality. An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way screen sizes were handled by LibVNCServer. A malicious VNC server could use this flaw to cause a client to crash or, potentially, execute arbitrary code in the client. (CVE-2014-6051) A NULL pointer dereference flaw was found in LibVNCServer's framebuffer setup. A malicious VNC server could use this flaw to cause a VNC client to crash. (CVE-2014-6052) A NULL pointer dereference flaw was found in the way LibVNCServer handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client. (CVE-2014-6053) A divide-by-zero flaw was found in the way LibVNCServer handled the scaling factor when it was set to "0". A remote attacker could use this flaw to crash the VNC server using a malicious VNC client. (CVE-2014-6054) Two stack-based buffer overflow flaws were found in the way LibVNCServer handled file transfers. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client. (CVE-2014-6055) Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges Nicolas Ruff as the original reporter. All libvncserver users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running applications linked against libvncserver must be restarted for this update to take effect.
Family: unix Class: patch
Reference(s): RHSA-2014:1826
CESA-2014:1826-CentOS 6
CESA-2014:1826-CentOS 7
CVE-2014-6051
CVE-2014-6052
CVE-2014-6053
CVE-2014-6054
CVE-2014-6055
 Version: 3
Platform(s): Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
CentOS Linux 6
CentOS Linux 7
 Product(s): libvncserver
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28219
 
Oval ID: oval:org.mitre.oval:def:28219
Title: ELSA-2014-1827 -- kdenetwork security update (moderate)
Description: [7:4.10.5-8] - Resolves: CVE-2014-6055
Family: unix Class: patch
Reference(s): ELSA-2014-1827
CVE-2014-6053
CVE-2014-6054
CVE-2014-6055
 Version: 5
Platform(s): Oracle Linux 7
 Product(s): kdenetwork
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28316
 
Oval ID: oval:org.mitre.oval:def:28316
Title: ELSA-2014-1826 -- libvncserver security update (moderate)
Description: [0.9.7-7.1] - Fix CVE-2014-6051 (integer overflow in screen size handling) (bug #1157668) - Fix CVE-2014-6052 (NULL pointer dereference in framebuffer setup) (bug #1157668) - Fix CVE-2014-6053 (NULL pointer dereference in ClientCutText message handling) (bug #1157668) - Fix CVE-2014-6054 (server divide-by-zero in scaling factor handling) (bug #1157668) - Fix CVE-2014-6055 (server stacked-based buffer overflow in file transfer handling) (bug #1157668) [0.9.7-7] - Revert CVE-2011-0904 and CVE-2011-0905 patch because libvncserver is not vulnerable (bug #696767) [0.9.7-6] - Fix CVE-2011-0904 and CVE-2011-0905 in more generic way (bug #696767) [0.9.7-5] - Fix CVE-2011-0904 (bug #696767) - Fix CVE-2011-0905 (bug #696767)
Family: unix Class: patch
Reference(s): ELSA-2014-1826
CVE-2014-6051
CVE-2014-6052
CVE-2014-6053
CVE-2014-6054
CVE-2014-6055
 Version: 3
Platform(s): Oracle Linux 6
Oracle Linux 7
 Product(s): libvncserver
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28422
 
Oval ID: oval:org.mitre.oval:def:28422
Title: DSA-3081-1 -- libvncserver security update
Description: Several vulnerabilities have been discovered in libvncserver, a library to implement VNC server functionality. These vulnerabilities might result in the execution of arbitrary code or denial of service in both the client and the server side.
Family: unix Class: patch
Reference(s): DSA-3081-1
CVE-2014-6051
CVE-2014-6052
CVE-2014-6053
CVE-2014-6054
CVE-2014-6055
 Version: 3
Platform(s): Debian GNU/Linux 7.0
Debian GNU/kFreeBSD 7.0
 Product(s): libvncserver
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1
Os 2
Os 1
Os 1

Nessus® Vulnerability Scanner

Date Description
2016-10-12 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_cb3f036d8c7f11e6924a60a44ce6887b.nasl - Type : ACT_GATHER_INFO
2016-01-04 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2088-2.nasl - Type : ACT_GATHER_INFO
2015-12-16 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-851.nasl - Type : ACT_GATHER_INFO
2015-11-30 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2110-1.nasl - Type : ACT_GATHER_INFO
2015-11-25 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-2088-1.nasl - Type : ACT_GATHER_INFO
2015-07-08 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201507-07.nasl - Type : ACT_GATHER_INFO
2015-04-15 Name : The remote Debian host is missing a security update.
File : debian_DLA-197.nasl - Type : ACT_GATHER_INFO
2015-03-30 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2015-146.nasl - Type : ACT_GATHER_INFO
2015-02-03 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-0113.nasl - Type : ACT_GATHER_INFO
2014-12-01 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3081.nasl - Type : ACT_GATHER_INFO
2014-11-27 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2014-229.nasl - Type : ACT_GATHER_INFO
2014-11-13 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20141111_kdenetwork_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2014-11-13 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20141111_libvncserver_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2014-11-13 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-1827.nasl - Type : ACT_GATHER_INFO
2014-11-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-1827.nasl - Type : ACT_GATHER_INFO
2014-11-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-1826.nasl - Type : ACT_GATHER_INFO
2014-11-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-1827.nasl - Type : ACT_GATHER_INFO
2014-11-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-1826.nasl - Type : ACT_GATHER_INFO
2014-11-12 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-1826.nasl - Type : ACT_GATHER_INFO
2014-10-09 Name : The remote Fedora host is missing a security update.
File : fedora_2014-11464.nasl - Type : ACT_GATHER_INFO
2014-10-06 Name : The remote Fedora host is missing a security update.
File : fedora_2014-11541.nasl - Type : ACT_GATHER_INFO
2014-10-01 Name : The remote Fedora host is missing a security update.
File : fedora_2014-11685.nasl - Type : ACT_GATHER_INFO
2014-09-30 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2365-1.nasl - Type : ACT_GATHER_INFO
2014-09-29 Name : The remote Fedora host is missing a security update.
File : fedora_2014-11537.nasl - Type : ACT_GATHER_INFO
2014-09-25 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_fb25333d442f11e498f35453ed2e2b49.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/70096
CONFIRM https://github.com/newsoft/libvncserver/commit/06ccdf016154fde8eccb5355613ba0...
https://github.com/newsoft/libvncserver/commit/f528072216dec01cee7ca35d94e171...
https://www.kde.org/info/security/advisory-20140923-1.txt
DEBIAN http://www.debian.org/security/2014/dsa-3081
FEDORA http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654...
http://lists.fedoraproject.org/pipermail/package-announce/2014-September/1394...
GENTOO https://security.gentoo.org/glsa/201507-07
MISC http://www.ocert.org/advisories/ocert-2014-007.html
MLIST http://seclists.org/oss-sec/2014/q3/639
http://www.openwall.com/lists/oss-security/2014/09/25/11
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
REDHAT http://rhn.redhat.com/errata/RHSA-2015-0113.html
SECUNIA http://secunia.com/advisories/61506
SUSE http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
UBUNTU https://usn.ubuntu.com/4587-1/
XF https://exchange.xforce.ibmcloud.com/vulnerabilities/96187

Alert History

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Date Informations
2021-05-04 12:33:12
  • Multiple Updates
2021-04-22 01:40:55
  • Multiple Updates
2020-10-23 17:22:42
  • Multiple Updates
2020-05-23 01:52:56
  • Multiple Updates
2020-05-23 00:41:58
  • Multiple Updates
2017-09-08 09:23:07
  • Multiple Updates
2016-12-22 09:23:39
  • Multiple Updates
2016-12-07 09:24:12
  • Multiple Updates
2016-10-13 13:25:06
  • Multiple Updates
2016-09-06 21:20:18
  • Multiple Updates
2016-04-27 01:07:27
  • Multiple Updates
2016-01-05 13:25:47
  • Multiple Updates
2015-12-17 13:26:27
  • Multiple Updates
2015-12-01 13:26:12
  • Multiple Updates
2015-11-26 13:27:20
  • Multiple Updates
2015-07-09 13:28:08
  • Multiple Updates
2015-04-16 13:28:22
  • Multiple Updates
2015-03-31 13:28:44
  • Multiple Updates
2015-03-12 09:23:37
  • Multiple Updates
2015-02-04 13:24:35
  • Multiple Updates
2014-12-01 13:27:07
  • Multiple Updates
2014-11-28 13:27:33
  • Multiple Updates
2014-11-14 13:26:28
  • Multiple Updates
2014-11-13 13:27:10
  • Multiple Updates
2014-10-10 13:25:52
  • Multiple Updates
2014-10-08 13:25:05
  • Multiple Updates
2014-10-04 13:31:42
  • Multiple Updates
2014-10-02 13:27:17
  • Multiple Updates
2014-10-02 00:24:58
  • Multiple Updates
2014-10-01 13:27:24
  • Multiple Updates
2014-10-01 00:28:11
  • First insertion