Eye of GNOME up to 3.20.3 GMarkup UTF-8 Chars out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Eye of GNOME up to 3.16.4/3.17.x/3.18.2/3.19.x/3.20.3. This impacts an unknown function of the component GMarkup. This manipulation as part of UTF-8 Chars causes out-of-bounds write. This vulnerability is registered as CVE-2016-6855. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Eye of GNOME up to 3.16.4/3.17.x/3.18.2/3.19.x/3.20.3. It has been declared as critical. Affected by this vulnerability is an unknown code of the component GMarkup. The manipulation as part of a UTF-8 Chars 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 availability. The summary by CVE is:

Eye of GNOME (aka eog) 3.16.5, 3.17.x, 3.18.x before 3.18.3, 3.19.x, and 3.20.x before 3.20.4, when used with glib before 2.44.1, allow remote attackers to cause a denial of service (out-of-bounds write and crash) via vectors involving passing invalid UTF-8 to GMarkup.

The weakness was published 09/07/2016 (Website). It is possible to read the advisory at lists.opensuse.org. This vulnerability is known as CVE-2016-6855 since 08/18/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 93073 (FreeBSD : eog -- out-of-bounds write (f5035ead-688b-11e6-8b1d-c86000169601)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169380 (SUSE Enterprise Linux Security Update for eog (SUSE-SU-2016:2827-1)).

Upgrading to version 3.16.5, 3.18.3 or 3.20.4 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 Exploit-DB (40291), Tenable (93073) and SecurityFocus (BID 92616†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93073
Nessus Name: FreeBSD : eog -- out-of-bounds write (f5035ead-688b-11e6-8b1d-c86000169601)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 881485
OpenVAS Name: Fedora Update for eog FEDORA-2016-0f8779baa6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Eye of GNOME 3.16.5/3.18.3/3.20.4
Patch: git.gnome.org

Timelineinfo

08/18/2016 🔍
08/22/2016 +4 days 🔍
08/23/2016 +1 days 🔍
08/23/2016 +0 days 🔍
09/07/2016 +15 days 🔍
09/07/2016 +0 days 🔍
09/08/2016 +1 days 🔍
09/24/2024 +2938 days 🔍

Sourcesinfo

Advisory: USN-3069-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6855 (🔍)
GCVE (CVE): GCVE-0-2016-6855
GCVE (VulDB): GCVE-100-91375
SecurityFocus: 92616 - Gnome Eye Of Gnome CVE-2016-6855 Out of Bounds Write Denial of Service Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/08/2016 21:59
Updated: 09/24/2024 05:00
Changes: 09/08/2016 21:59 (62), 04/12/2019 07:22 (16), 09/15/2022 09:40 (5), 09/19/2024 00:06 (14), 09/24/2024 05:00 (2)
Complete: 🔍
Cache ID: 216::103

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