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CVE-2021-33586

Good to know:

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Date: May 27, 2021

InspIRCd 3.8.0 through 3.9.x before 3.10.0 allows any user (able to connect to the server) to access recently deallocated memory, aka the "malformed PONG" issue.

Language: C++

Severity Score

Related Resources (7)

https://security.gentoo.org/glsa/202107-22
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-33586
https://github.com/inspircd/inspircd/commit/4350a11c663b0d75f8119743bffb7736d87abd4d
https://docs.inspircd.org/security/2021-01/
https://nvd.nist.gov/vuln/detail/CVE-2021-33586
https://security-tracker.debian.org/tracker/CVE-2021-33586
https://www.mend.io/vulnerability-database/CVE-2021-33586

Severity Score

Weakness Type (CWE)

Incorrect Permission Assignment for Critical Resource

CWE-732

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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