Vulnerability Details : CVE-2021-33586
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.
Products affected by CVE-2021-33586
- cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33586
0.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33586
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-33586
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-33586
-
https://github.com/inspircd/inspircd/commit/4350a11c663b0d75f8119743bffb7736d87abd4d
Fix sending malformed pong messages in some cases. · inspircd/inspircd@4350a11 · GitHubPatch;Third Party Advisory
-
https://security.gentoo.org/glsa/202107-22
InspIRCd: Information disclosure (GLSA 202107-22) — Gentoo securityThird Party Advisory
-
https://docs.inspircd.org/security/2021-01/
Security Advisory 2021-01 - InspIRCd DocumentationPatch;Vendor Advisory
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