Apple iOS up to 9.1 libarchive memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$5k-$25k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple iOS up to 9.1. This impacts an unknown function of the component libarchive. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2011-2895. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple iOS up to 9.1 (Smartphone Operating System). Affected by this issue is an unknown code block of the component libarchive. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was released 12/08/2015 by Tomas Hoger as HT205635 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2011-2895 since 07/27/2011. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/30/2022). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A memory corruption issue existed in the processing of archives. This issue was addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 59066 (Mac OS X 10.7.x < 10.7.4 Multiple Vulnerabilities (BEAST)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123461 (Fedora Security Update for nx-libs (FEDORA-2015-3953)).

Upgrading to version 9.2 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 X-Force (69141), Tenable (59066), SecurityFocus (BID 49124†), Secunia (SA45544†) and SecurityTracker (ID 1025920†). Entries connected to this vulnerability are available at VDB-4791, VDB-5399, VDB-5404 and VDB-5409. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 59066
Nessus Name: Mac OS X 10.7.x < 10.7.4 Multiple Vulnerabilities (BEAST)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2011-1154
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 9.2
Patch: cgit.freedesktop.org

Timelineinfo

07/27/2011 🔍
08/11/2011 +15 days 🔍
08/11/2011 +0 days 🔍
08/19/2011 +8 days 🔍
05/10/2012 +265 days 🔍
12/08/2015 +1307 days 🔍
12/08/2015 +0 days 🔍
12/08/2015 +0 days 🔍
12/09/2015 +1 days 🔍
12/15/2015 +6 days 🔍
06/30/2022 +2388 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205635
Researcher: Tomas Hoger
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-2895 (🔍)
GCVE (CVE): GCVE-0-2011-2895
GCVE (VulDB): GCVE-100-79616

OVAL: 🔍

X-Force: 69141
SecurityFocus: 49124 - X.Org libXfont LZW Decompression 'BufCompressedFill()' Local Privilege Escalation Vulnerability
Secunia: 45544
SecurityTracker: 1025920
Vulnerability Center: 55250 - Apple iOS <9.2 Remote Code Execution due to an Issue in Libarchive - CVE-2011-2895, Critical

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

Entryinfo

Created: 12/09/2015 14:32
Updated: 06/30/2022 01:51
Changes: 12/09/2015 14:32 (61), 05/14/2018 12:40 (25), 06/30/2022 01:51 (4)
Complete: 🔍
Cache ID: 216:720:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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