CVE-2019-12647
published 2019-09-25CVE-2019-12647: A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to…
PriorityP342high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.98%
78.2th percentile
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_ios | >= unspecified < 12.1(12) | 12.1(12) |
| cisco | ios_and_ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv3.08.6HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
vendor_cisco8.6HIGH
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Cisco
Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
vendor_cisco·2019-09-25·CVSS 8.6
CVE-2019-12647 [HIGH] CWE-476 Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload.
The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the
Cisco
Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
vendor_cisco·CVSS 3.0
CVE-2019-12647 Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
CVE-2019-12647: Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Cisco has released software updates that address this vulnerability. There are no
CVSS: 3.0
CWE: CWE-476, CWE-476
Bug IDs: CSCvm01689
GHSA
GHSA-rhg8-m3m4-vcqg: A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected de
ghsa_unreviewed·2022-05-24
CVE-2019-12647 [HIGH] CWE-476 GHSA-rhg8-m3m4-vcqg: A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected de
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2019-09-25
Published