Apple tvOS up to 10.2.2 zlib numeric error

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

A vulnerability has been found in Apple tvOS up to 10.2.2 (Digital Media Player) and classified as very critical. Affected by this vulnerability is an unknown part of the component zlib. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

The bug was discovered 12/05/2016. The weakness was disclosed 09/25/2017 as HT208113 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2016-9840 since 12/05/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/04/2023). The advisory points out:

Multiple issues were addressed by updating to version 1.2.11.

The vulnerability was handled as a non-public zero-day exploit for at least 169 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 100378 (SUSE SLES11 Security Update : java-1_7_1-ibm (SUSE-SU-2017:1387-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371397 (IBM Cognos Business Intelligence Multiple Security Vulnerabilities(swg22014202)).

Upgrading to version 11.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (100378). The entries 21337, 63776, 90671 and 96545 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100378
Nessus Name: SUSE SLES11 Security Update : java-1_7_1-ibm (SUSE-SU-2017:1387-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT208144
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: tvOS 11.0
Patch: github.com

Timelineinfo

12/05/2016 🔍
12/05/2016 +0 days 🔍
05/23/2017 +169 days 🔍
05/24/2017 +1 days 🔍
09/25/2017 +124 days 🔍
09/25/2017 +0 days 🔍
10/23/2017 +28 days 🔍
01/17/2018 +86 days 🔍
01/04/2023 +1813 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208113
Researcher: Jeriko One
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9840 (🔍)
OVAL: 🔍

SecurityTracker: 1039427
SecurityFocus: 102803 - rsync 'options.c' Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 10/23/2017 11:55
Updated: 01/04/2023 12:37
Changes: 10/23/2017 11:55 (68), 11/29/2019 21:23 (16), 01/20/2021 12:46 (2), 01/20/2021 12:50 (1), 01/04/2023 12:37 (3)
Complete: 🔍

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