SCA: security update for rfc3161-client (GHSA-6qhv-4h7r-2g9m)

critical Tenable Self-Hosted Container Security Plugin ID 427896

Description

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

- rfc3161-client is a Python library implementing the Time-Stamp Protocol (TSP) described in RFC 3161. Prior
to version 1.0.3, there is a flaw in the timestamp response signature verification logic. In particular,
chain verification is performed against the TSR's embedded certificates up to the trusted root(s), but
fails to verify the TSR's own signature against the timestamping leaf certificates. Consequently,
vulnerable versions perform insufficient signature validation to properly consider a TSR verified, as the
attacker can introduce any TSR signature so long as the embedded leaf chains up to some root TSA. This
issue has been patched in version 1.0.3. There is no workaround for this issue. (CVE-2025-52556)

Plugin Details

Severity: Critical

ID: 427896

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 6/20/2025

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

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-52556

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/20/2025

Vulnerability Publication Date: 6/20/2025

Reference Information

CVE: CVE-2025-52556

cwe: CWE-347

Detections

Analytics