Apple iOS up to 10.2.0 libarchive memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple iOS up to 10.2.0. This impacts an unknown function of the component libarchive. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2016-8687. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS up to 10.2.0 (Smartphone Operating System). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component libarchive. The manipulation with an unknown input 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:

Stack-based buffer overflow in the safe_fprintf function in tar/util.c in libarchive 3.2.1 allows remote attackers to cause a denial of service via a crafted non-printable multibyte character in a filename.

The bug was discovered 01/23/2017. The weakness was shared 01/23/2017 by Agostino Sarubbo with Gentoo as HT207482 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2016-8687 since 10/15/2016. 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 $5k-$25k at the moment (estimation calculated on 11/03/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A buffer overflow issue was addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 96877 (Apple TV < 10.1.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176840 (Debian Security Update for libarchive (DLA 1600-1)).

Upgrading to version 10.2.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96877) and SecurityFocus (BID 93781†). The entries VDB-91754, VDB-95903, VDB-95902 and VDB-95905 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 96877
Nessus Name: Apple TV < 10.1.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for libarchive USN-3225-1
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: iOS 10.2.1
Patch: github.com

Timelineinfo

10/15/2016 🔍
10/15/2016 +0 days 🔍
01/23/2017 +100 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/25/2017 +2 days 🔍
01/30/2017 +5 days 🔍
02/15/2017 +16 days 🔍
11/03/2022 +2087 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207482
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-8687 (🔍)
GCVE (CVE): GCVE-0-2016-8687
GCVE (VulDB): GCVE-100-95929
SecurityFocus: 93781 - libarchive Multiple Security Vulnerabilities
OSVDB: - CVE-2016-8687 - libarchive - Buffer Overflow Issue
SecurityTracker: 1037668

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 01/25/2017 11:35
Updated: 11/03/2022 15:01
Changes: 01/25/2017 11:35 (81), 08/31/2020 17:35 (6), 11/03/2022 15:01 (4)
Complete: 🔍
Cache ID: 216:FD7:103

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

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