CVE-2021-33586

2021-05-2705:15:06

Debian Security Bug Tracker

security-tracker.debian.org

insufficient input validation

unauthorized access

deallocated memory

malformed pong issue

unix

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.001

Percentile

25.8%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12allinspircd< 3.8.1-2inspircd_3.8.1-2_all.deb
Debian11allinspircd< 3.8.1-2inspircd_3.8.1-2_all.deb
Debian999allinspircd< 3.8.1-2inspircd_3.8.1-2_all.deb
Debian13allinspircd< 3.8.1-2inspircd_3.8.1-2_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	inspircd	< 3.8.1-2	inspircd_3.8.1-2_all.deb
Debian	11	all	inspircd	< 3.8.1-2	inspircd_3.8.1-2_all.deb
Debian	999	all	inspircd	< 3.8.1-2	inspircd_3.8.1-2_all.deb
Debian	13	all	inspircd	< 3.8.1-2	inspircd_3.8.1-2_all.deb