VDB-168744 · CVE-2021-25900 · RUSTSEC-2021-0003

smallvec Crate up to 0.6.13/1.6.0 on Rust SmallVec::insert_many heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in smallvec Crate up to 0.6.13/1.6.0 on Rust. This issue affects the function SmallVec::insert_many. The manipulation results in heap-based overflow. This vulnerability is cataloged as CVE-2021-25900. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in smallvec Crate up to 0.6.13/1.6.0 on Rust (Rust Package). Affected is the function SmallVec::insert_many. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 01/27/2021 as RUSTSEC-2021-0003. The advisory is shared for download at rustsec.org. This vulnerability is traded as CVE-2021-25900. There are known technical details, but no exploit is available.

Upgrading to version 0.6.14 or 1.6.1 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Rust Package

Name

smallvec Crate

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: smallvec Crate 0.6.14/1.6.1

Timelineinfo

01/22/2021 🔍
01/27/2021 +5 days 🔍
01/27/2021 +0 days 🔍
02/20/2021 +24 days 🔍

Sourcesinfo

Advisory: RUSTSEC-2021-0003
Status: Confirmed

CVE: CVE-2021-25900 (🔍)
GCVE (CVE): GCVE-0-2021-25900
GCVE (VulDB): GCVE-100-168744

Entryinfo

Created: 01/27/2021 10:58
Updated: 02/20/2021 11:35
Changes: 01/27/2021 10:58 (40), 02/20/2021 11:32 (5), 02/20/2021 11:35 (18)
Complete: 🔍
Cache ID: 216::103