CVE-2015-0847

Debian Security Advisory 3271-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle signals, which allows remote attackers to cause a denial of service (deadlock) via unspecified vectors.

nbd-server.c en Network Block Device (nbd-server) anterior a 3.11 no maneja correctamente los señales, lo que permite a atacantes remotos causar una denegación de servicio (bloqueo) a través de vectores no especificados.

It was discovered that NBD incorrectly handled IP address matching. A remote attacker could use this issue with an IP address that has a partial match and bypass access restrictions. This issue only affected Ubuntu 12.04 LTS. Tuomas discovered that NBD incorrectly handled wrong export names and closed connections during negotiation. A remote attacker could use this issue to cause NBD to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. Various other issues were also addressed.

*Credits: N/A

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

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-01-07 CVE Reserved
2015-05-26 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-17: DEPRECATED: Code

CAPEC

References (6)

URL	Tag	Source
http://sourceforge.net/p/nbd/mailman/message/34091218	Mailing List
http://www.openwall.com/lists/oss-security/2015/05/07/9	Mailing List

URL	Date	SRC

URL	Date	SRC
http://sourceforge.net/projects/nbd/files/nbd/3.11	2016-12-31

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2015-06/msg00003.html	2016-12-31
http://www.debian.org/security/2015/dsa-3271	2016-12-31
http://www.ubuntu.com/usn/USN-2676-1	2016-12-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
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"				14.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.10"		-		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
Wouter Verhelst Search vendor "Wouter Verhelst"		Nbd Search vendor "Wouter Verhelst" for product "Nbd"				<= 3.10 Search vendor "Wouter Verhelst" for product "Nbd" and version " <= 3.10"		-		Affected