VDB-175359 · CVE-2021-31318 · Nessus 213716

Telegram App up to 7.0 on Android/iOS/macOS rlottie Library LOTCompLayerItem type confusion

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.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Telegram App up to 7.0 on Android/iOS/macOS. This affects the function LOTCompLayerItem::LOTCompLayerItem of the component rlottie Library. Performing a manipulation results in type confusion. This vulnerability is cataloged as CVE-2021-31318. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Telegram App up to 7.0 on Android/iOS/macOS. This affects the function LOTCompLayerItem::LOTCompLayerItem of the component rlottie Library. The manipulation with an unknown input leads to a type confusion vulnerability. CWE is classifying the issue as CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 05/19/2021. It is possible to read the advisory at shielder.it. This vulnerability is uniquely identified as CVE-2021-31318. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 213716 (Ubuntu 20.04 LTS / 22.04 LTS : rlottie vulnerabilities (USN-7198-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (213716). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Type confusion
CWE: CWE-843
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

Nessus ID: 213716
Nessus Name: Ubuntu 20.04 LTS / 22.04 LTS : rlottie vulnerabilities (USN-7198-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: App 7.1

Timelineinfo

04/15/2021 🔍
05/19/2021 +34 days 🔍
05/19/2021 +0 days 🔍
05/03/2025 +1445 days 🔍

Sourcesinfo

Advisory: shielder.it
Status: Confirmed

CVE: CVE-2021-31318 (🔍)
GCVE (CVE): GCVE-0-2021-31318
GCVE (VulDB): GCVE-100-175359
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 05/19/2021 08:30
Updated: 05/03/2025 20:27
Changes: 05/19/2021 08:30 (36), 05/19/2021 08:32 (4), 05/22/2021 14:24 (2), 01/10/2025 21:25 (16), 05/03/2025 20:27 (3)
Complete: 🔍
Cache ID: 216::103