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Cisco StarOS における有効期限後のメモリの解放の欠如に関する脆弱性
Title Cisco StarOS における有効期限後のメモリの解放の欠如に関する脆弱性
Summary

Cisco StarOS には、有効期限後のメモリの解放の欠如に関する脆弱性が存在します。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date Jan. 20, 2021, midnight
Registration Date Oct. 14, 2021, 5:15 p.m.
Last Update Oct. 14, 2021, 5:15 p.m.
CVSS3.0 : 重要
Score 8.6
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS2.0 : 警告
Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected System
シスコシステムズ
Cisco StarOS 
Virtualized Packet Core-Single Instance 
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2021年10月14日]
  掲載		 Oct. 14, 2021, 5:15 p.m.
NVD Vulnerability Information
CVE-2021-1353
Summary

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.

Publication Date Jan. 21, 2021, 5:15 a.m.
Registration Date Jan. 26, 2021, 10:40 a.m.
Last Update Nov. 21, 2024, 2:44 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:* 21.22.0
execution environment
1 cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:*
2 cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:*
3 cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:*
Configuration2 or higher or less more than less than
cpe:2.3:a:cisco:virtualized_packet_core-single_instance:-:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List