libzip 0.10 zip_open.c zip_readcdir ZIP File numeric error

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in libzip 0.10 and classified as problematic. This affects the function zip_readcdir of the file zip_open.c. Performing a manipulation as part of ZIP File results in numeric error. This vulnerability is known as CVE-2012-1163. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in libzip 0.10. It has been classified as critical. This affects the function zip_readcdir of the file zip_open.c. The manipulation as part of a ZIP File leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the _zip_readcdir function in zip_open.c in libzip 0.10 allows remote attackers to execute arbitrary code via the size and offset values for the central directory in a zip archive, which triggers "improper restrictions of operations within the bounds of a memory buffer" and an information leak.

The weakness was published 03/20/2012 by Thomas Klausner as not defined mailinglist post (Website). It is possible to read the advisory at nih.at. This vulnerability is uniquely identified as CVE-2012-1163 since 02/14/2012. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 58695 (Fedora 17 : libzip-0.10.1-1.fc17 (2012-4485)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 0.10.1 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 X-Force (74177), Tenable (58695), SecurityFocus (BID 52658†), OSVDB (80234†) and Secunia (SA48469†). Similar entry is available at VDB-4874. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 58695
Nessus Name: Fedora 17 : libzip-0.10.1-1.fc17 (2012-4485)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 864407
OpenVAS Name: Fedora Update for libzip FEDORA-2012-4485
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: libzip 0.10.1

Timelineinfo

02/14/2012 🔍
03/20/2012 +35 days 🔍
03/20/2012 +0 days 🔍
03/20/2012 +0 days 🔍
03/21/2012 +1 days 🔍
03/21/2012 +0 days 🔍
03/22/2012 +1 days 🔍
03/22/2012 +0 days 🔍
07/12/2012 +112 days 🔍
07/25/2012 +13 days 🔍
03/22/2021 +3162 days 🔍

Sourcesinfo

Advisory: nih.at
Researcher: Thomas Klausner
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-1163 (🔍)
GCVE (CVE): GCVE-0-2012-1163
GCVE (VulDB): GCVE-100-4875
X-Force: 74177
SecurityFocus: 52658 - libzip Multiple Buffer Overflow Vulnerabilities
Secunia: 48469 - libzip Directory Entries and Central Directory Parsing Vulnerabilities, Highly Critical
OSVDB: 80234
Vulnerability Center: 35694 - Libzip 0.10 Remote Arbitrary Code Execution via the Size and Offset Values, Medium

See also: 🔍

Entryinfo

Created: 03/22/2012 16:01
Updated: 03/22/2021 09:12
Changes: 03/22/2012 16:01 (72), 04/14/2017 15:17 (9), 03/22/2021 09:12 (2)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!