LibreOffice up to 3.5.4 Encryption memory corruption

HistoryDiffrelatejsonxmlCTI

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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in LibreOffice 3.5.0/3.5.1/3.5.2/3.5.3/3.5.4. It has been rated as critical. Impacted is an unknown function of the component Encryption. This manipulation causes memory corruption. This vulnerability is registered as CVE-2012-2665. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in LibreOffice 3.5.0/3.5.1/3.5.2/3.5.3/3.5.4 (Office Suite Software). It has been declared as critical. Affected by this vulnerability is an unknown function of the component Encryption. 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:

Multiple heap-based buffer overflows in the XML manifest encryption tag parsing functionality in OpenOffice.org and LibreOffice before 3.5.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted Open Document Text (.odt) file with (1) a child tag within an incorrect parent tag, (2) duplicate tags, or (3) a Base64 ChecksumAttribute whose length is not evenly divisible by four.

The weakness was published 08/06/2012 by Timo Warns as Bug 826077 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2012-2665 since 05/14/2012. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 68591 (Oracle Linux 6 : libreoffice (ELSA-2012-1135)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156400 (Oracle Enterprise Linux Update for libreoffice (ELSA-2012-1135)).

Upgrading to version 3.5.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (77386), Tenable (68591), SecurityFocus (BID 54769†), Secunia (SA50142†) and SecurityTracker (ID 1027331†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Office Suite Software

Name

LibreOffice

Version

License

open-source

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

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 68591
Nessus Name: Oracle Linux 6 : libreoffice (ELSA-2012-1135)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71497
OpenVAS Name: Debian Security Advisory DSA 2520-1 (openoffice.org)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LibreOffice 3.5.3

Timelineinfo

05/14/2012 🔍
05/29/2012 +15 days 🔍
06/08/2012 +10 days 🔍
08/01/2012 +54 days 🔍
08/02/2012 +1 days 🔍
08/06/2012 +4 days 🔍
08/06/2012 +0 days 🔍
08/14/2012 +8 days 🔍
07/12/2013 +332 days 🔍
03/23/2015 +619 days 🔍
12/31/2024 +3571 days 🔍

Sourcesinfo

Advisory: Bug 826077
Researcher: Timo Warns
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-2665 (🔍)
GCVE (CVE): GCVE-0-2012-2665
GCVE (VulDB): GCVE-100-61495

OVAL: 🔍

X-Force: 77386
SecurityFocus: 54769 - LibreOffice and OpenOffice Multiple Heap Based Buffer Overflow Vulnerabilities
Secunia: 50142 - LibreOffice XML Manifest Handling Buffer Overflow Vulnerabilities, Highly Critical
SecurityTracker: 1027331 - LibreOffice XML Manifest Encryption Handling Heap Overflows Let Remote Users Execute Arbitrary Code
Vulnerability Center: 35850 - OpenOffice.org and LibreOffice Before 3.5.5 Remote Code Execution Vulnerability via a Crafted .odt, Medium

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/31/2024 08:13
Changes: 03/23/2015 16:50 (65), 04/15/2017 16:28 (18), 12/07/2021 10:30 (3), 12/31/2024 08:13 (20)
Complete: 🔍
Cache ID: 216::103