Cisco IOS XE CAPWAP Packet double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$5k-$25k0.00

Summaryinfo

A vulnerability was found in Cisco IOS XE. It has been classified as problematic. The impacted element is an unknown function of the component CAPWAP Packet Handler. This manipulation causes double free. This vulnerability appears as CVE-2021-1565. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Cisco IOS XE (Router Operating System) (unknown version). Affected by this vulnerability is an unknown code block of the component CAPWAP Packet Handler. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect availability.

The weakness was presented 09/23/2021 with Cisco as cisco-sa-ewlc-capwap-dos-gmNjdKOY. It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2021-1565 since 11/13/2020. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/23/2021).

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: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
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 🔍
09/23/2021 +313 days 🔍
09/23/2021 +0 days 🔍
10/01/2021 +8 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-ewlc-capwap-dos-gmNjdKOY
Organization: Cisco
Status: Confirmed

CVE: CVE-2021-1565 (🔍)
GCVE (CVE): GCVE-0-2021-1565
GCVE (VulDB): GCVE-100-183223
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/23/2021 09:14
Updated: 10/01/2021 12:24
Changes: 09/23/2021 09:14 (44), 09/23/2021 09:16 (8), 10/01/2021 12:24 (1)
Complete: 🔍
Cache ID: 216::103

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