Telegram App up to 7.0 rlottie Library generateGradientColorTable heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Telegram App up to 7.0. Affected is the function VGradientCache::generateGradientColorTable of the component rlottie Library. The manipulation leads to heap-based overflow. This vulnerability is documented as CVE-2021-31320. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Telegram App up to 7.0 and classified as critical. This issue affects the function VGradientCache::generateGradientColorTable of the component rlottie Library. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to 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(). Impacted is confidentiality, integrity, and availability.

The weakness was released 05/19/2021. The advisory is shared at shielder.it. The identification of this vulnerability is CVE-2021-31320. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

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). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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: 🔍

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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-2021-31320 (🔍)
GCVE (CVE): GCVE-0-2021-31320
GCVE (VulDB): GCVE-100-175361

Entryinfo

Created: 05/19/2021 08:31
Updated: 05/03/2025 20:27
Changes: 05/19/2021 08:31 (39), 05/22/2021 14:29 (5), 01/10/2025 21:25 (16), 05/03/2025 20:27 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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