CVE-2015-2922

kernel: denial of service (DoS) attack against IPv6 network stacks due to improper handling of Router Advertisements.

Severity Score

3.3

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in the Linux kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

La función ndisc_router_discovery en net/ipv6/ndisc.c en la implementación de protocolo Neighbor Discovery (ND) en la pila IPv6 en el kernel de Linux anterior a 3.19.6 permite a atacantes remotos reconfigurar una configuración 'hop-limit' a través de un valor hop_limit pequeño en un mensaje Router Advertisement (RA).

It was found that the Linux kernel's TCP/IP protocol suite implementation for IPv6 allowed the Hop Limit value to be set to a smaller value than the default one. An attacker on a local network could use this flaw to prevent systems on that network from sending or receiving network packets.

*Credits: N/A

CVSS Scores

NISTv2 3.3

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

2015-04-04 CVE Reserved
2015-04-27 CVE Published
2024-08-06 CVE Updated
2024-08-06 First Exploit
2024-11-20 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-17: DEPRECATED: Code
CWE-454: External Initialization of Trusted Variables or Data Stores

CAPEC

References (20)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6fd99094de2b83d1d4c8457f2c83483b2828e75a	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html	Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html	Third Party Advisory
http://www.securityfocus.com/bid/74315	Vdb Entry
http://www.securitytracker.com/id/1032417	Vdb Entry
https://github.com/torvalds/linux/commit/6fd99094de2b83d1d4c8457f2c83483b2828e75a	X_refsource_confirm

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.6	2024-08-06
http://www.openwall.com/lists/oss-security/2015/04/04/2	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155804.html	2023-11-07
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155854.html	2023-11-07
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155908.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html	2023-11-07
http://rhn.redhat.com/errata/RHSA-2015-1221.html	2023-11-07
http://rhn.redhat.com/errata/RHSA-2015-1534.html	2023-11-07
http://rhn.redhat.com/errata/RHSA-2015-1564.html	2023-11-07
http://www.debian.org/security/2015/dsa-3237	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=1203712	2015-08-05
https://access.redhat.com/security/cve/CVE-2015-2922	2015-08-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 3.19.5 Search vendor "Linux" for product "Linux Kernel" and version " <= 3.19.5"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				20 Search vendor "Fedoraproject" for product "Fedora" and version "20"		-		Affected
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
Oracle Search vendor "Oracle"		Linux Search vendor "Oracle" for product "Linux"				5.0 Search vendor "Oracle" for product "Linux" and version "5.0"		-		Affected
Oracle Search vendor "Oracle"		Solaris Search vendor "Oracle" for product "Solaris"				11.3 Search vendor "Oracle" for product "Solaris" and version "11.3"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Mrg Search vendor "Redhat" for product "Enterprise Mrg"				2.5 Search vendor "Redhat" for product "Enterprise Mrg" and version "2.5"		-		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