CVE-2019-1909
published 2019-07-06CVE-2019-1909: A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker…
PriorityP430medium5.9CVSS 3.0
AVNACHPRNUINSUCNINAH
EPSS
1.49%
71.5th percentile
A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific set of attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic from explicitly defined peers only. To exploit this vulnerability, the malicious BGP update message would need to come from a configured, valid BGP peer or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_ios_xr_software | >= unspecified < 6.4.2 | 6.4.2 |
| cisco | ios_xr | — | — |
| cisco | ios_xr | >= 4.3.1 < 6.6.2 | 6.6.2 |
| msrc | windows_10_version_1809_for_32-bit_systems | — | — |
| msrc | windows_10_version_1809_for_arm64-based_systems | — | — |
| msrc | windows_10_version_1809_for_x64-based_systems | — | — |
| msrc | windows_10_version_20h2_for_32-bit_systems | — | — |
| msrc | windows_10_version_20h2_for_arm64-based_systems | — | — |
| msrc | windows_10_version_21h1_for_32-bit_systems | — | — |
| msrc | windows_10_version_21h1_for_arm64-based_systems | — | — |
| msrc | windows_10_version_21h1_for_x64-based_systems | — | — |
| msrc | windows_10_version_21h2_for_32-bit_systems | — | — |
| msrc | windows_10_version_21h2_for_arm64-based_systems | — | — |
| msrc | windows_10_version_21h2_for_x64-based_systems | — | — |
| msrc | windows_11_version_21h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_21h2_for_x64-based_systems | — | — |
| msrc | windows_server_2019 | — | — |
| msrc | windows_server_2022 | — | — |
| msrc | windows_server_version_20h2 | — | — |
CVSS provenance
nvdv3.05.9MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
vendor_msrc9.8CRITICAL
vendor_cisco6.8MEDIUM
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GHSA
GHSA-2qrh-hw5v-7wp4: A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote a
ghsa_unreviewed·2022-05-24
CVE-2019-1909 [MEDIUM] CWE-20 GHSA-2qrh-hw5v-7wp4: A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote a
A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific set of attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic from explicitly defined peers only. To exploit this vulnerability, the malicious BGP update message would need to come from a configured, valid BGP p
Cisco
Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
vendor_cisco·2019-07-03·CVSS 6.8
CVE-2019-1909 [MEDIUM] CWE-20 Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system.
The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific set of attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition.
The Cisco implementation of BGP accepts incoming BGP traffic from explicitly defined peers only. To exploit this vulnerability, the
Cisco
Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
vendor_cisco·CVSS 3.0
CVE-2019-1909 Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
CVE-2019-1909: Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific set of attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic from explicitly defined peers only. To exploit this vuln
No detection rules found.
No public exploits indexed.
2019-07-06
Published