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SCA: security update for github.com/tendermint/tendermint (GHSA-v24h-pjjv-mcp6)

low Tenable Self-Hosted Container Security Plugin ID 431708

Description

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

 - Tendermint before versions 0.33.3, 0.32.10, and 0.31.12 has a denial-of-service vulnerability. Tendermint
 does not limit the number of P2P connection requests. For each p2p connection, it allocates XXX bytes.
 Even though this memory is garbage collected once the connection is terminated (due to duplicate IP or
 reaching a maximum number of inbound peers), temporary memory spikes can lead to OOM (Out-Of-Memory)
 exceptions. Additionally, Tendermint does not reclaim activeID of a peer after it's removed in Mempool
 reactor. This does not happen all the time. It only happens when a connection fails (for any reason)
 before the Peer is created and added to all reactors. RemovePeer is therefore called before AddPeer, which
 leads to always growing memory (activeIDs map). The activeIDs map has a maximum size of 65535 and the node
 will panic if this map reaches the maximum. An attacker can create a lot of connection attempts
 (exploiting above denial of service), which ultimately will lead to the node panicking. These issues are
 patched in Tendermint 0.33.3 and 0.32.10. (CVE-2020-5303)

See Also

https://github.com/advisories/GHSA-v24h-pjjv-mcp6

Plugin Details

Severity: Low

ID: 431708

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 8/7/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2020-5303

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/27/2021

Vulnerability Publication Date: 4/10/2020

Reference Information

CVE: CVE-2020-5303