gtk-vnc up to 0.6.x Tile x/y range error

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in gtk-vnc up to 0.6.x. This affects an unknown part of the component Tile Handler. Such manipulation of the argument x/y leads to range error. This vulnerability is uniquely identified as CVE-2017-5884. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in gtk-vnc up to 0.6.x. It has been rated as critical. Affected by this issue is an unknown part of the component Tile Handler. The manipulation of the argument x/y with an unknown input leads to a range error vulnerability. Using CWE to declare the problem leads to CWE-118. The product does not restrict or incorrectly restricts operations within the boundaries of a resource that is accessed using an index or pointer, such as memory or files. Impacted is confidentiality, integrity, and availability. CVE summarizes:

gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles, which allows remote servers to execute arbitrary code via the src x, y coordinates in a crafted (1) rre, (2) hextile, or (3) copyrect tile.

The bug was discovered 03/03/2017. The weakness was disclosed 02/28/2017 by Adam Maris (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2017-5884 since 02/04/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 97236 (Debian DLA-831-1 : gtk-vnc 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 256265 (CentOS Security Update for gtk-vnc (CESA-2017:2258)).

Upgrading to version 0.7.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97236) and SecurityFocus (BID 96016†). The entry VDB-97353 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Range error
CWE: CWE-118
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97236
Nessus Name: Debian DLA-831-1 : gtk-vnc security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for mingw-gtk-vnc FEDORA-2017-c3739273e5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: gtk-vnc 0.7.0

Timelineinfo

02/04/2017 🔍
02/04/2017 +0 days 🔍
02/20/2017 +16 days 🔍
02/21/2017 +1 days 🔍
02/28/2017 +7 days 🔍
02/28/2017 +0 days 🔍
03/01/2017 +1 days 🔍
03/03/2017 +2 days 🔍
09/02/2020 +1279 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Adam Maris
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5884 (🔍)
GCVE (CVE): GCVE-0-2017-5884
GCVE (VulDB): GCVE-100-97352
SecurityFocus: 96016 - gtk-vnc Remote Code Execution Vulnerability and Multiple Integer Overflow Vulnerabilities
OSVDB: - CVE-2017-5884 - gtk-vnc - Code Execution Issues

See also: 🔍

Entryinfo

Created: 03/01/2017 08:14
Updated: 09/02/2020 17:36
Changes: 03/01/2017 08:14 (77), 09/02/2020 17:36 (3)
Complete: 🔍
Cache ID: 216::103

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