FreeBSD : go -- net/http: panic due to racy read of persistConn after handler panic (880552c4-f63f-11eb-9d56-7186043316e9)

medium Nessus Plugin ID 152288


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The remote FreeBSD host is missing a security-related update.


The Go project reports :

A net/http/httputil ReverseProxy can panic due to a race condition if its Handler aborts with ErrAbortHandler, for example due to an error in copying the response body. An attacker might be able to force the conditions leading to the race condition.


Update the affected package.

See Also

Plugin Details

Severity: Medium

ID: 152288

File Name: freebsd_pkg_880552c4f63f11eb9d567186043316e9.nasl

Version: 1.2

Type: local

Published: 8/9/2021

Updated: 8/23/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-36221


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:go, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 8/5/2021

Vulnerability Publication Date: 6/21/2021

Reference Information

CVE: CVE-2021-36221