Lucene search

CiscoCVE-2021-1353

HistoryJan 20, 2021 - 8:15 p.m.

CVE-2021-1353

2021-01-2020:15:17

CWE-401

cisco

web.nvd.nist.gov

cisco

staros

ipv4

vulnerability

denial of service

dos

memory leak

nvd

cve-2021-1353

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

AI Score

8.3

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON

A vulnerability in the IPv4 protocol handling of Cisco StarOS could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory leak that occurs during packet processing. An attacker could exploit this vulnerability by sending a series of crafted IPv4 packets through an affected device. A successful exploit could allow the attacker to exhaust the available memory and cause an unexpected restart of the npusim process, leading to a DoS condition on the affected device.

Affected configurations

Nvd

Node

ciscostarosRange<21.22.0

AND

ciscoasr_5000Match-

ciscoasr_5500Match-

ciscoasr_5700Match-

Node

ciscovirtualized_packet_core-single_instanceMatch-

VendorProductVersionCPE
ciscostaros*cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*
ciscoasr_5000-cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:*
ciscoasr_5500-cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:*
ciscoasr_5700-cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:*
ciscovirtualized_packet_core-single_instance-cpe:2.3:a:cisco:virtualized_packet_core-single_instance:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	staros	*	cpe:2.3:o:cisco:staros::::::::
cisco	asr_5000	-	cpe:2.3:h:cisco:asr_5000:-:::::::*
cisco	asr_5500	-	cpe:2.3:h:cisco:asr_5500:-:::::::*
cisco	asr_5700	-	cpe:2.3:h:cisco:asr_5700:-:::::::*
cisco	virtualized_packet_core-single_instance	-	cpe:2.3:a:cisco:virtualized_packet_core-single_instance:-:::::::*

CNA Affected

[
  {
    "product": "Cisco ASR 5000 Series Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr-mem-leak-dos-MTWGHKk3

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

AI Score

8.3

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON

Related for CVE-2021-1353