LibreOffice up to 5.4.6.0/6.0.2.0 ww8toolbar.cxx SwCTBWrapper::Read memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability has been found in LibreOffice up to 5.4.6.0/6.0.2.0 (Office Suite Software) and classified as critical. Affected by this vulnerability is the function SwCTBWrapper::Read of the file sw/source/filter/ww8/ww8toolbar.cxx. 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:

The SwCTBWrapper::Read function in sw/source/filter/ww8/ww8toolbar.cxx in LibreOffice before 5.4.6.1 and 6.x before 6.0.2.1 does not validate a customizations index, which allows remote attackers to cause a denial of service (heap-based buffer overflow with write access) or possibly have unspecified other impact via a crafted document.

The bug was discovered 04/15/2018. The weakness was shared 04/16/2018 (Website). It is possible to read the advisory at bugs.chromium.org. This vulnerability is known as CVE-2018-10120 since 04/15/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 109880 (openSUSE Security Update : libreoffice (openSUSE-2018-467)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197367 (Ubuntu Security Notification for Libreoffice Vulnerabilities (USN-3883-1)).

Upgrading to version 5.4.6.1 or 6.0.2.1 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (109880). The entries 116238, 117265, 130353 and 132182 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109880
Nessus Name: openSUSE Security Update : libreoffice (openSUSE-2018-467)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54572
OpenVAS Name: Fedora Update for libreoffice FEDORA-2018-e87eb1ae68
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: LibreOffice 5.4.6.1/6.0.2.1
Patch: 017fcc2fcd00af17a97bd5463d89662404f57667

Timelineinfo

04/15/2018 🔍
04/15/2018 +0 days 🔍
04/16/2018 +0 days 🔍
04/16/2018 +0 days 🔍
04/16/2018 +0 days 🔍
05/16/2018 +30 days 🔍
05/17/2018 +1 days 🔍
01/31/2019 +259 days 🔍
02/28/2023 +1489 days 🔍

Sourcesinfo

Advisory: RHSA-2018:3054
Status: Confirmed

CVE: CVE-2018-10120 (🔍)
OVAL: 🔍

SecurityFocus: 106803 - Apache OpenOffice CVE-2018-11790 Local Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 04/16/2018 16:00
Updated: 02/28/2023 09:28
Changes: 04/16/2018 16:00 (78), 01/25/2020 10:13 (4), 02/28/2023 09:28 (6)
Complete: 🔍

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