Cisco IOS MPLS VPN May Leak Information - Cisco Systems

Devices running Cisco IOS versions 12.0S, 12.2, 12.3 or 12.4 and configured for Multiprotocol Label Switching MPLS Virtual Private Networks VPNs or VPN Routing and Forwarding Lite VRF Lite and using Border Gateway Protocol BGP between Customer Edge CE and Provider Edge PE devices may permit...

Cisco IOS BGP Attribute Corruption Vulnerability - Cisco Systems

A Border Gateway Protocol BGP UPDATE contains Network Layer Reachability Information NLRI and attributes that describe the path to the destination. An unrecognized transitive attribute can cause failures in Cisco IOS routers, ranging from a crash upon receipt of the unrecognized transitive...

Cisco IOS Malformed BGP Packet Causes Reload - Cisco Systems

A Cisco device running IOS and enabled for the Border Gateway Protocol BGP is vulnerable to a Denial of Service DOS attack from a malformed BGP packet. The BGP protocol is not enabled by default, and must be configured in order to accept traffic from an explicitly defined peer. Unless the malicio...

Cisco IOS Software Border Gateway Protocol 4-Byte Autonomous System Number Vulnerabilities - Cisco Systems

Recent versions of Cisco IOS Software support RFC4893 "BGP Support for Four-octet AS Number Space" and contain two remote denial of service DoS vulnerabilities when handling specific Border Gateway Protocol BGP updates. These vulnerabilities affect only devices running Cisco IOS Software with...

Cisco Releases Security Advisory for IOS XR Software Border Gateway Protocol

Cisco has released a security advisory to address a vulnerability in the Cisco IOS XR Software Border Gateway Protocol feature. Exploitation of this vulnerability may result in the continuous resetting of BGP peering sessions, which may cause a denial-of-service condition for affected networks...

CVE-2010-3035

Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service peering reset via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, a...

Code injection

Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service peering reset via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, a...

CVE-2010-3035

Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service peering reset via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, a...

CVE-2010-3035

Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service peering reset via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, a...

CVE-2010-3035

CVE-2010-3035 affects Cisco IOS XR 3.4.0–3.9.1 with BGP enabled. A crafted BGP prefix using an unrecognized transitive attribute (notably attribute code 99) can cause a DoS by resetting the BGP peering session. In the wild demonstrations occurred in August 2010. Affected platforms: Cisco IOS XR. ...

Cisco Security Advisory: Cisco IOS XR Software Border Gateway Protocol Vulnerability

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS XR Software Border Gateway Protocol Vulnerability Advisory ID: cisco-sa-20100827-bgp Revision 1.0 For Public Release 2010 August 27 2200 UTC GMT +---------------------------------------------------------------------...

CVE-2010-3035

Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service peering reset via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, a...

Cisco IOS XR BGP DoS

Router may issue invalid announce on receiving prefix with malformed attribute...

Cisco IOS XR Software Border Gateway Protocol Vulnerability

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES TH...

FreeBSD : quagga -- stack overflow and DoS vulnerabilities (167953a4-b01c-11df-9a98-0015587e2cc1)

The Red Hat security team reported two vulnerabilities : A stack-based buffer overflow flaw was found in the way Quagga's bgpd daemon processed Route-Refresh messages. A configured Border Gateway Protocol BGP peer could send a Route-Refresh message with specially crafted Outbound Route Filtering...

quagga -- stack overflow and DoS vulnerabilities

The Red Hat security team reported two vulnerabilities: A stack buffer overflow flaw was found in the way Quagga's bgpd daemon processed Route-Refresh messages. A configured Border Gateway Protocol BGP peer could send a Route-Refresh message with specially-crafted Outbound Route Filtering ORF...

Cisco Security Advisory: Cisco IOS Software Crafted TCP Packet Denial of Service Vulnerability

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS Software Crafted TCP Packet Denial of Service Vulnerability Advisory ID: cisco-sa-20100324-tcp Revision 1.0 For Public Release 2010 March 24 1600 UTC GMT...

Cisco IOS XR BGP更新AS前置拒绝服务漏洞

BUGTRAQ ID: 36093 CVECAN ID: CVE-2009-2056 Cisco IOS是思科网络设备所使用的互联网操作系统。 如果将Cisco IOS XR BGP进程配置为向AS路径前置大量的AS编号，BGP进程会崩溃。所需前置的AS编号数量和导致的崩溃都超过了生产环境中的正常限制。 当受影响设备的BGP进程由于这种超大AS路径前置而崩溃，在崩溃之前不会生成日志消息。 Cisco IOS XR 3.8.X Cisco IOS XR 3.7.X Cisco IOS XR 3.6.X Cisco IOS XR 3.5.X Cisco IOS XR 3.4.X Cisco...

Path traversal

Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service process crash via vectors involving a BGP UPDATE message with many AS numbers prepended to the AS path...

CVE-2009-1154

Cisco IOS XR 3.8.1 and earlier allows remote attackers to cause a denial of service process crash via a long BGP UPDATE message, as demonstrated by a message with many AS numbers in the AS Path Attribute...