#VU46820 Use-after-free in InspIRCd - CVE-2020-25269
Published: September 11, 2020 / Updated: September 20, 2020
Vulnerability identifier: #VU46820
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-25269
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
InspIRCd
InspIRCd
Software vendor:
InspIRCd
InspIRCd
Description
The vulnerability allows a remote user to crash the daemon.
The vulnerability exists due to a use-after-free error within the pgsql module in InspIRCd. A remote user can send specially crafted request to the daemon, trigger a use-after-free error and crash the server..
Successful exploitation of the vulnerability requires that sqlauth or sqloper modules are used.
Remediation
Install updates from vendor's website.