FreeType 2 psaux/t1decode.c t1_decoder_parse_charstrings out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in FreeType 2. This affects the function t1_decoder_parse_charstrings of the file psaux/t1decode.c. Executing a manipulation can lead to out-of-bounds write. This vulnerability is registered as CVE-2017-8105. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in FreeType 2 (Software Library) (affected version unknown) and classified as critical. This vulnerability affects the function t1_decoder_parse_charstrings of the file psaux/t1decode.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

FreeType 2 before 2017-03-24 has an out-of-bounds write caused by a heap-based buffer overflow related to the t1_decoder_parse_charstrings function in psaux/t1decode.c.

The bug was discovered 04/24/2017. The weakness was published 04/24/2017 (Website). The advisory is available at git.savannah.gnu.org. This vulnerability was named CVE-2017-8105 since 04/24/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 99692 (Debian DLA-918-1 : freetype security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176017 (Debian Security Update for freetype (DSA 3839-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99692) and SecurityFocus (BID 99093†). Similar entries are available at VDB-100624, VDB-133592 and VDB-133593. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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: 99692
Nessus Name: Debian DLA-918-1 : freetype security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703839
OpenVAS Name: Debian Security Advisory DSA 3839-1 (freetype - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: git.savannah.gnu.org

Timelineinfo

03/24/2017 🔍
04/24/2017 +31 days 🔍
04/24/2017 +0 days 🔍
04/24/2017 +0 days 🔍
04/24/2017 +0 days 🔍
04/25/2017 +1 days 🔍
04/27/2017 +2 days 🔍
06/16/2017 +50 days 🔍
12/02/2022 +1995 days 🔍

Sourcesinfo

Advisory: git.savannah.gnu.org
Researcher: monor
Status: Not defined

CVE: CVE-2017-8105 (🔍)
GCVE (CVE): GCVE-0-2017-8105
GCVE (VulDB): GCVE-100-100570

OVAL: 🔍

SecurityFocus: 99093 - FreeType 2 CVE-2017-8105 Out of Bounds Write Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2017-8105 - FreeType 2 - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 04/25/2017 09:04
Updated: 12/02/2022 10:02
Changes: 04/25/2017 09:04 (74), 09/20/2020 21:07 (4), 12/21/2020 13:48 (2), 12/02/2022 10:02 (3)
Complete: 🔍
Cache ID: 216:6BE:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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