Apple tvOS up to 10.2.0 AVEVideoEncoder Application memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple tvOS up to 10.2.0 and classified as critical. This affects an unknown part of the component AVEVideoEncoder. This manipulation as part of Application causes memory corruption. This vulnerability is tracked as CVE-2017-6997. The attack is restricted to local execution. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apple tvOS up to 10.2.0 (Digital Media Player) and classified as critical. Affected by this vulnerability is an unknown part of the component AVEVideoEncoder. The manipulation as part of a Application leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 is affected. The issue involves the "AVEVideoEncoder" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

The bug was discovered 05/17/2017. The weakness was disclosed 05/22/2017 with Zimperium zLabs (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2017-6997 since 03/17/2017. Attacking locally is a requirement. A single authentication is necessary for exploitation. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 10.2.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42555) and SecurityFocus (BID 98571†). The entries VDB-101294, VDB-101254, VDB-101258 and VDB-101262 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality 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: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tvOS 10.2.1

Timelineinfo

03/17/2017 🔍
05/15/2017 +59 days 🔍
05/17/2017 +2 days 🔍
05/22/2017 +5 days 🔍
05/22/2017 +0 days 🔍
05/22/2017 +0 days 🔍
10/09/2024 +2697 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Researcher: Adam Donenfeld (@doadam)
Organization: Zimperium zLabs
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6997 (🔍)
GCVE (CVE): GCVE-0-2017-6997
GCVE (VulDB): GCVE-100-101587
SecurityFocus: 98571 - Apple iOS/WatchOS/tvOS Multiple Memory Corruption Vulnerabilities
OSVDB: - CVE-2017-6997 - Apple - Apple Tv - High

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/22/2017 17:09
Updated: 10/09/2024 22:53
Changes: 05/22/2017 17:09 (62), 10/01/2020 16:39 (11), 12/25/2020 12:07 (2), 10/09/2024 22:53 (15)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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