Apple tvOS up to 16.1.1 libxml2 integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 16.1.1. It has been rated as critical. Affected by this issue is some unknown functionality of the component libxml2. Performing a manipulation results in integer overflow. This vulnerability was named CVE-2022-40303. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple tvOS up to 16.1.1 (Digital Media Player). This affects an unknown function of the component libxml2. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 12/13/2022 by Maddie Stone as HT213535 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2022-40303. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The advisory points out:

A remote user may be able to cause unexpected app termination or arbitrary code execution

The vulnerability scanner Nessus provides a plugin with the ID 211168 (Fedora 37 : libxml2 / xmlsec1 (2022-a6812b0224)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 16.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

An integer overflow was addressed through improved input validation.

The vulnerability is also documented in the vulnerability database at Tenable (211168). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: 211168
Nessus Name: Fedora 37 : libxml2 / xmlsec1 (2022-a6812b0224)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 16.2
Patch: gitlab.gnome.org

Timelineinfo

09/09/2022 🔍
12/13/2022 +95 days 🔍
12/13/2022 +0 days 🔍
12/14/2022 +1 days 🔍
04/29/2025 +867 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213535
Researcher: Maddie Stone
Status: Confirmed

CVE: CVE-2022-40303 (🔍)
GCVE (CVE): GCVE-0-2022-40303
GCVE (VulDB): GCVE-100-215733

Entryinfo

Created: 12/14/2022 10:12
Updated: 04/29/2025 10:30
Changes: 12/14/2022 10:12 (11), 12/14/2022 10:13 (8), 12/14/2022 10:16 (27), 01/10/2023 00:03 (3), 01/10/2023 00:14 (11), 11/17/2024 03:28 (17), 04/28/2025 15:14 (3), 04/29/2025 10:30 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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