CVE-2017-5885

gtk-vnc: Integer overflow when processing SetColorMapEntries

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Multiple integer overflows in the (1) vnc_connection_server_message and (2) vnc_color_map_set functions in gtk-vnc before 0.7.0 allow remote servers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving SetColorMapEntries, which triggers a buffer overflow.

Múltiples desbordamientos de entero en las funciones (1) vnc_connection_server_message y (2) vnc_color_map_set en gtk-vnc en versiones anteriores a 0.7.0 permiten a servidores remotos provocar una denegación de servicio (caída) o la posibilidad de ejecutar código arbitrario a través de vectores implicando SetColorMapEntries, lo que desencadena un desbordamiento de búfer.

An integer overflow flaw was found in gtk-vnc. A remote malicious VNC server could use this flaw to crash VNC viewers which are based on the gtk-vnc library.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-02-04 CVE Reserved
2017-02-20 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-190: Integer Overflow or Wraparound

CAPEC

References (9)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2017/02/03/5	Mailing List
http://www.openwall.com/lists/oss-security/2017/02/05/5	Mailing List
http://www.securityfocus.com/bid/96016	Third Party Advisory

URL	Date	SRC
https://bugzilla.gnome.org/show_bug.cgi?id=778050	2024-08-05

URL	Date	SRC
https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590fcb7bae4ce6e7344963e	2023-02-12

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2017:2258	2023-02-12
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK	2023-02-12
https://access.redhat.com/security/cve/CVE-2017-5885	2017-08-01
https://bugzilla.redhat.com/show_bug.cgi?id=1418952	2017-08-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				25 Search vendor "Fedoraproject" for product "Fedora" and version "25"		-		Affected
Gnome Search vendor "Gnome"		Gtk-vnc Search vendor "Gnome" for product "Gtk-vnc"				<= 0.6.0 Search vendor "Gnome" for product "Gtk-vnc" and version " <= 0.6.0"		-		Affected