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SCA: security update for github.com/pires/go-proxyproto (GHSA-fqh4-rh59-xhvf)

medium Tenable Cloud Security Plugin ID 414650

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The package github.com/pires/go-proxyproto before 0.5.0 are vulnerable to Denial of Service (DoS) via the
 parseVersion1() function. The reader in this package is a default bufio.Reader wrapping a net.Conn. It
 will read from the connection until it finds a newline. Since no limits are implemented in the code, a
 deliberately malformed V1 header could be used to exhaust memory in a server process using this code - and
 create a DoS. This can be exploited by sending a stream starting with PROXY and continuing to send data
 (which does not contain a newline) until the target stops acknowledging. The risk here is small, because
 only trusted sources should be allowed to send proxy protocol headers. (CVE-2021-23351)

See Also

https://github.com/advisories/GHSA-fqh4-rh59-xhvf

Plugin Details

Severity: Medium

ID: 414650

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS Score Source: CVE-2021-23351

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/18/2021

Vulnerability Publication Date: 3/8/2021

Reference Information

CVE: CVE-2021-23351

cwe: CWE-400