erlang otp up to 27.3.0 memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in erlang otp up to 27.3.0. This issue affects some unknown processing. Executing a manipulation can lead to memory allocation. The identification of this vulnerability is CVE-2025-30211. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in erlang otp up to 27.3.0 and classified as critical. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a memory allocation vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect availability. CVE summarizes:

Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.1, 26.2.5.10, and 25.3.2.19, a maliciously formed KEX init message can result with high memory usage. Implementation does not verify RFC specified limits on algorithm names (64 characters) provided in KEX init message. Big KEX init packet may lead to inefficient processing of the error data. As a result, large amount of memory will be allocated for processing malicious data. Versions OTP-27.3.1, OTP-26.2.5.10, and OTP-25.3.2.19 fix the issue. Some workarounds are available. One may set option `parallel_login` to `false` and/or reduce the `max_sessions` option.

The advisory is available at github.com. This vulnerability was named CVE-2025-30211 since 03/18/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 234111 (CBL Mariner 2.0 Security Update: erlang (CVE-2025-30211)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 25.3.2.19, 26.2.5.10 or 27.3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (234111). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234111
Nessus Name: CBL Mariner 2.0 Security Update: erlang (CVE-2025-30211)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: otp 25.3.2.19/26.2.5.10/27.3.1

Timelineinfo

03/18/2025 🔍
03/28/2025 +10 days 🔍
03/28/2025 +0 days 🔍
04/10/2025 +13 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-vvr3-fjhh-cfwc
Status: Confirmed

CVE: CVE-2025-30211 (🔍)
GCVE (CVE): GCVE-0-2025-30211
GCVE (VulDB): GCVE-100-301954

Entryinfo

Created: 03/28/2025 17:19
Updated: 04/10/2025 20:29
Changes: 03/28/2025 17:19 (64), 04/10/2025 20:29 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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