gtk-vnc up to 0.4.2 Framebuffer memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability was found in gtk-vnc up to 0.4.2. It has been rated as critical. This impacts an unknown function of the component Framebuffer Handler. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2017-1000044. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in gtk-vnc up to 0.4.2. It has been rated as critical. This issue affects an unknown function of the component Framebuffer Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

gtk-vnc 0.4.2 and older doesn't check framebuffer boundaries correctly when updating framebuffer which may lead to memory corruption when rendering

The bug was discovered 11/29/2010. The weakness was disclosed 07/17/2017 as confirmed git commit (GIT Repository). It is possible to read the advisory at git.gnome.org. The identification of this vulnerability is CVE-2017-1000044 since 07/10/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2422 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.gnome.org.

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: 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: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.gnome.org

Timelineinfo

11/29/2010 🔍
07/10/2017 +2415 days 🔍
07/17/2017 +7 days 🔍
07/17/2017 +0 days 🔍
07/17/2017 +0 days 🔍
10/26/2019 +831 days 🔍

Sourcesinfo

Advisory: git.gnome.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-1000044 (🔍)
GCVE (CVE): GCVE-0-2017-1000044
GCVE (VulDB): GCVE-100-103607

Entryinfo

Created: 07/17/2017 21:03
Updated: 10/26/2019 11:35
Changes: 07/17/2017 21:03 (58), 10/26/2019 11:35 (2)
Complete: 🔍
Cache ID: 216::103

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