Cisco NX-OS ICMPv6 memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco NX-OS. It has been classified as problematic. The affected element is an unknown function of the component ICMPv6 Handler. Performing a manipulation results in memory leak. This vulnerability is known as CVE-2021-1229. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco NX-OS (Router Operating System) (unknown version). It has been classified as problematic. This affects an unknown code block of the component ICMPv6 Handler. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability.

The weakness was published 02/25/2021 as cisco-sa-fxos-nxos-icmpv6-dos-YD55jVCq. The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2021-1229. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/13/2020 🔍
02/25/2021 +104 days 🔍
02/25/2021 +0 days 🔍
03/05/2021 +8 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-fxos-nxos-icmpv6-dos-YD55jVCq
Status: Confirmed

CVE: CVE-2021-1229 (🔍)
GCVE (CVE): GCVE-0-2021-1229
GCVE (VulDB): GCVE-100-170385

Entryinfo

Created: 02/25/2021 07:02
Updated: 03/05/2021 07:22
Changes: 02/25/2021 07:02 (38), 03/05/2021 07:19 (5), 03/05/2021 07:22 (17)
Complete: 🔍
Cache ID: 216::103

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