CVE-2015-5219

ntp: infinite loop in sntp processing crafted packet

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ULOGTOD function in ntp.d in SNTP before 4.2.7p366 does not properly perform type conversions from a precision value to a double, which allows remote attackers to cause a denial of service (infinite loop) via a crafted NTP packet.

La función ULOGTOD en el archivo ntp.d en SNTP en versiones anteriores a la 4.2.7p366 no realiza apropiadamente las conversiones de tipo de un valor de precisión a uno doble, lo que permite a los atacantes remotos causar una denegación de servicio (bucle infinito) por medio de un paquete NTP creado.

It was discovered that the sntp utility could become unresponsive due to being caught in an infinite loop when processing a crafted NTP packet.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-01 CVE Reserved
2015-10-27 CVE Published
2024-08-06 CVE Updated
2024-10-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-704: Incorrect Type Conversion or Cast
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (25)

URL	Tag	Source
http://aix.software.ibm.com/aix/efixes/security/ntp_advisory4.asc	Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	Third Party Advisory
http://www.securityfocus.com/bid/76473	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf	Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11	Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=isg3T1024157	Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=swg21985122	Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=swg21986956	Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=swg21988706	Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=swg21989542	Third Party Advisory
https://www.ibm.com/support/home/docdisplay?lndocid=migr-5099409	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://bk1.ntp.org/ntp-dev/?PAGE=patch&REV=51786731Gr4-NOrTBC_a_uXO4wuGhg	2023-02-13
http://www.openwall.com/lists/oss-security/2015/08/25/3	2023-02-13
https://github.com/ntp-project/ntp/commit/5f295cd05c3c136d39f5b3e500a2d781bdbb59c8	2023-02-13

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html	2023-02-13
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.html	2023-02-13
http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166992.html	2023-02-13
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html	2023-02-13
http://lists.opensuse.org/opensuse-updates/2016-12/msg00153.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2016-0780.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2016-2583.html	2023-02-13
http://www.debian.org/security/2015/dsa-3388	2023-02-13
http://www.ubuntu.com/usn/USN-2783-1	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=1255118	2016-11-03
https://access.redhat.com/security/cve/CVE-2015-5219	2016-11-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Siemens Search vendor "Siemens"	Tim 4r-ie Firmware Search vendor "Siemens" for product "Tim 4r-ie Firmware"	*	-	Affected	in	Siemens Search vendor "Siemens"	Tim 4r-ie Search vendor "Siemens" for product "Tim 4r-ie"	-	-	Safe
Siemens Search vendor "Siemens"	Tim 4r-id Dnp3 Firmware Search vendor "Siemens" for product "Tim 4r-id Dnp3 Firmware"	*	-	Affected	in	Siemens Search vendor "Siemens"	Tim 4r-id Dnp3 Search vendor "Siemens" for product "Tim 4r-id Dnp3"	-	-	Safe
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				21 Search vendor "Fedoraproject" for product "Fedora" and version "21"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				22 Search vendor "Fedoraproject" for product "Fedora" and version "22"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				23 Search vendor "Fedoraproject" for product "Fedora" and version "23"		-		Affected
Suse Search vendor "Suse"		Linux Enterprise Debuginfo Search vendor "Suse" for product "Linux Enterprise Debuginfo"				11 Search vendor "Suse" for product "Linux Enterprise Debuginfo" and version "11"		sp2		Affected
Suse Search vendor "Suse"		Linux Enterprise Debuginfo Search vendor "Suse" for product "Linux Enterprise Debuginfo"				11 Search vendor "Suse" for product "Linux Enterprise Debuginfo" and version "11"		sp3		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				10 Search vendor "Suse" for product "Linux Enterprise Server" and version "10"		sp4, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp2, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp3, ltss		Affected
Suse Search vendor "Suse"		Manager Search vendor "Suse" for product "Manager"				2.1 Search vendor "Suse" for product "Manager" and version "2.1"		-		Affected
Suse Search vendor "Suse"		Manager Proxy Search vendor "Suse" for product "Manager Proxy"				2.1 Search vendor "Suse" for product "Manager Proxy" and version "2.1"		-		Affected
Suse Search vendor "Suse"		Openstack Cloud Search vendor "Suse" for product "Openstack Cloud"				5 Search vendor "Suse" for product "Openstack Cloud" and version "5"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				6.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Hpc Node Search vendor "Redhat" for product "Enterprise Linux Hpc Node"				6.0 Search vendor "Redhat" for product "Enterprise Linux Hpc Node" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Hpc Node Search vendor "Redhat" for product "Enterprise Linux Hpc Node"				7.0 Search vendor "Redhat" for product "Enterprise Linux Hpc Node" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				6.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				6.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"		-		Affected
Ntp Search vendor "Ntp"		Ntp Search vendor "Ntp" for product "Ntp"				<= 4.2.7 Search vendor "Ntp" for product "Ntp" and version " <= 4.2.7"		p355		Affected
Novell Search vendor "Novell"		Leap Search vendor "Novell" for product "Leap"				42.2 Search vendor "Novell" for product "Leap" and version "42.2"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.1 Search vendor "Opensuse" for product "Leap" and version "42.1"		-		Affected
Oracle Search vendor "Oracle"		Linux Search vendor "Oracle" for product "Linux"				6 Search vendor "Oracle" for product "Linux" and version "6"		-		Affected