7.5

CVE-2017-6627

Warnung
A vulnerability in the UDP processing code of Cisco IOS 15.1, 15.2, and 15.4 and IOS XE 3.14 through 3.18 could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and a denial of service (DoS) condition. The vulnerability is due to Cisco IOS Software application changes that create UDP sockets and leave the sockets idle without closing them. An attacker could exploit this vulnerability by sending UDP packets with a destination port of 0 to an affected device. A successful exploit could allow the attacker to cause UDP packets to be held in the input interfaces queue, resulting in a DoS condition. The input interface queue will stop holding UDP packets when it receives 250 packets. Cisco Bug IDs: CSCup10024, CSCva55744, CSCva95506.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Ios Xe Version 3.14.0s
Cisco ≫ Ios Xe Version 3.14.1s
Cisco ≫ Ios Xe Version 3.14.2s
Cisco ≫ Ios Xe Version 3.14.3s
Cisco ≫ Ios Xe Version 3.14.4s
Cisco ≫ Ios Xe Version 3.15.0s
Cisco ≫ Ios Xe Version 3.15.1cs
Cisco ≫ Ios Xe Version 3.15.1s
Cisco ≫ Ios Xe Version 3.15.2s
Cisco ≫ Ios Xe Version 3.15.3s
Cisco ≫ Ios Xe Version 3.15.4s
Cisco ≫ Ios Xe Version 3.16.0cs
Cisco ≫ Ios Xe Version 3.16.0s
Cisco ≫ Ios Xe Version 3.16.1as
Cisco ≫ Ios Xe Version 3.16.1s
Cisco ≫ Ios Xe Version 3.16.2as
Cisco ≫ Ios Xe Version 3.16.2bs
Cisco ≫ Ios Xe Version 3.16.2s
Cisco ≫ Ios Xe Version 3.16.3as
Cisco ≫ Ios Xe Version 3.16.3s
Cisco ≫ Ios Xe Version 3.16.4as
Cisco ≫ Ios Xe Version 3.16.4bs
Cisco ≫ Ios Xe Version 3.16.4ds
Cisco ≫ Ios Xe Version 3.16.4s
Cisco ≫ Ios Xe Version 3.16.5s
Cisco ≫ Ios Xe Version 3.16.6s
Cisco ≫ Ios Xe Version 3.17.0s
Cisco ≫ Ios Xe Version 3.17.1as
Cisco ≫ Ios Xe Version 3.17.1s
Cisco ≫ Ios Xe Version 3.17.3s
Cisco ≫ Ios Xe Version 3.18.0as
Cisco ≫ Ios Xe Version 3.18.0s
Cisco ≫ Ios Xe Version 3.18.1s
Cisco ≫ Ios Xe Version 3.18.2s
Cisco ≫ Ios Xe Version 3.18.3s
Cisco ≫ Ios Xe Version 3.18.3vs

03.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Cisco IOS Software and Cisco IOS XE Software UDP Packet Processing Denial-of-Service Vulnerability

Schwachstelle

A vulnerability in the UDP processing code of Cisco IOS and IOS XE could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and denial of service.

Beschreibung

Apply updates per vendor instructions.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 6.04% 0.924
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
CISA-ADP 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-404 Improper Resource Shutdown or Release

The product does not release or incorrectly releases a resource before it is made available for re-use.

http://www.securityfocus.com/bid/100644
Third Party Advisory
Broken Link
VDB Entry
http://www.securitytracker.com/id/1039289
Third Party Advisory
Broken Link
VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-ios-udp
Vendor Advisory
Mitigation
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6627
US Government Resource