Apple tvOS up to 15.5.1 Liblouis buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Apple tvOS up to 15.5.1. Affected is an unknown function of the component Liblouis. Such manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2022-26981. An attack has to be approached locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple tvOS up to 15.5.1 (Digital Media Player) and classified as problematic. Affected by this issue is an unknown function of the component Liblouis. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was shared 07/20/2022 by Hexhive as HT213342 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2022-26981. There are neither technical details nor an exploit publicly available. The advisory points out:

An app may cause unexpected app termination or arbitrary code execution

Upgrading to version 15.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

This issue was addressed with improved checks.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-31522). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: tvOS 15.6

Timelineinfo

03/13/2022 🔍
07/20/2022 +128 days 🔍
07/20/2022 +0 days 🔍
07/21/2022 +1 days 🔍
05/13/2026 +1392 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213342
Researcher: Hexhive
Status: Confirmed

CVE: CVE-2022-26981 (🔍)
GCVE (CVE): GCVE-0-2022-26981
GCVE (VulDB): GCVE-100-204764
EUVD: 🔍

Entryinfo

Created: 07/21/2022 19:00
Updated: 05/13/2026 08:23
Changes: 07/21/2022 19:00 (10), 07/21/2022 19:01 (8), 07/21/2022 19:04 (27), 08/16/2022 12:44 (2), 08/16/2022 12:51 (20), 05/13/2026 08:23 (15)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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