Detections
Analytics

SCA: security update for pyopenssl (GHSA-p28m-34f6-967q)

high Tenable Cloud Security Plugin ID 421886

Description

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

 - Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After
 Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial
 of service or remote code execution.. This attack appear to be exploitable via Depends on the calling
 application and if it retains a reference to the memory.. This vulnerability appears to have been fixed in
 17.5.0. (CVE-2018-1000807)

See Also

https://github.com/advisories/GHSA-p28m-34f6-967q

Plugin Details

Severity: High

ID: 421886

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 3/28/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.15

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2018-1000807

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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: 10/10/2018

Vulnerability Publication Date: 10/8/2018

Reference Information

CVE: CVE-2018-1000807

cwe: CWE-416