high
7.5
CWE
704
Advisory Published
CVE Published
Updated

CVE-2015-5219: Incorrect Type Cast

First published: Wed Aug 19 2015(Updated: )

It was discovered that sntp program would hang in an infinite loop when a crafted NTP packet was received, related to the conversion of the precision value in the packet to double.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Siemens TIM 4R-IE
Siemens TIM 4R-IE DNP3
Fedora=21
Fedora=22
Fedora=23
SUSE Linux Enterprise Debuginfo=11-sp2
SUSE Linux Enterprise Debuginfo=11-sp3
SUSE Linux Enterprise Server=10-sp4
SUSE Linux Enterprise Server=11-sp2
SUSE Linux Enterprise Server=11-sp3
SUSE Manager=2.1
suse manager proxy=2.1
openSUSE OpenStack Cloud=5
redhat enterprise Linux desktop=6.0
redhat enterprise Linux desktop=7.0
Red Hat Enterprise Linux HPC Node=6.0
Red Hat Enterprise Linux HPC Node=7.0
redhat enterprise Linux server=6.0
redhat enterprise Linux server=7.0
redhat enterprise Linux workstation=6.0
redhat enterprise Linux workstation=7.0
Debian=7.0
Debian=8.0
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=15.04
Ubuntu=15.10
NTP ntp<=4.2.7
Novell Leap=42.2
openSUSE=42.1
Siemens TIM 4R-IE DNP3
Siemens TIM 4R-IE DNP3
Siemens TIM 4R-ID DNP3
Siemens TIM 4R-ID DNP3
Oracle Linux=6

Remedy

http://bk1.ntp.org/ntp-dev/?PAGE=patch&REV=51786731Gr4-NOrTBC_a_uXO4wuGhg

Remedy

http://www.openwall.com/lists/oss-security/2015/08/25/3

Remedy

https://github.com/ntp-project/ntp/commit/5f295cd05c3c136d39f5b3e500a2d781bdbb59c8

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2015-5219?

    CVE-2015-5219 is rated as a medium severity vulnerability due to its potential to cause denial of service by hanging in an infinite loop.

  • How do I fix CVE-2015-5219?

    To mitigate CVE-2015-5219, update to the patched version of the NTP software that resolves the type conversion issue.

  • Which software is affected by CVE-2015-5219?

    CVE-2015-5219 affects various versions of the SNTP program, including Siemens TIM 4R-IE and Fedora versions 21, 22, and 23.

  • Is there a workaround for CVE-2015-5219?

    Currently, there is no known workaround for CVE-2015-5219 aside from applying the recommended patches.

  • What type of vulnerability is CVE-2015-5219?

    CVE-2015-5219 is a denial of service vulnerability caused by improper handling of crafted NTP packets.

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