HarfBuzz up to 1.0.4 hb-ot-layout-gpos-table.hh memory corruption

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

Summaryinfo

A vulnerability was found in HarfBuzz up to 1.0.4. It has been rated as critical. Impacted is an unknown function of the file hb-ot-layout-gpos-table.hh. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2015-8947. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in HarfBuzz up to 1.0.4 and classified as critical. Affected by this vulnerability is an unknown function of the file hb-ot-layout-gpos-table.hh. 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:

hb-ot-layout-gpos-table.hh in HarfBuzz before 1.0.5 allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted data, a different vulnerability than CVE-2016-2052.

The weakness was shared 07/19/2016 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2015-8947 since 07/18/2016. The exploitation appears to be easy. 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. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 93106 (Ubuntu 14.04 LTS / 16.04 LTS : harfbuzz vulnerabilities (USN-3067-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170361 (OpenSUSE Security Update for libreoffice (openSUSE-SU-2017:2488-1)).

Upgrading to version 1.0.5 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93106) and SecurityFocus (BID 92039†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.6
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.6
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: 93106
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS : harfbuzz vulnerabilities (USN-3067-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 840237
OpenVAS Name: Ubuntu Update for harfbuzz USN-3067-1
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: HarfBuzz 1.0.5
Patch: github.com

Timelineinfo

01/24/2016 🔍
07/18/2016 +176 days 🔍
07/19/2016 +1 days 🔍
07/19/2016 +0 days 🔍
07/20/2016 +1 days 🔍
08/24/2016 +35 days 🔍
08/25/2016 +1 days 🔍
09/09/2022 +2206 days 🔍

Sourcesinfo

Advisory: USN-3067-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8947 (🔍)
GCVE (CVE): GCVE-0-2015-8947
GCVE (VulDB): GCVE-100-90139
SecurityFocus: 92039 - HarfBuzz CVE-2015-8947 Denial of Service Vulnerability

Entryinfo

Created: 07/20/2016 12:21
Updated: 09/09/2022 07:21
Changes: 07/20/2016 12:21 (65), 03/04/2019 16:21 (13), 09/09/2022 07:15 (4), 09/09/2022 07:21 (1)
Complete: 🔍
Cache ID: 216:9D8:103

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