TigerVNC 0.0.90/0.0.91/1.0.0/1.0.1/1.1.0 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in TigerVNC 0.0.90/0.0.91/1.0.0/1.0.1/1.1.0. Affected by this vulnerability is an unknown functionality. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2014-8240. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in TigerVNC 0.0.90/0.0.91/1.0.0/1.0.1/1.1.0. This issue affects an unknown code. 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:

Integer overflow in TigerVNC allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to screen size handling, which triggers a heap-based buffer overflow, a similar issue to CVE-2014-6051.

The weakness was presented 10/16/2014 by Tim Waug with Red Hat as Bug 1151307 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2014-8240 since 10/11/2014. 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 scanner Nessus provides a plugin with the ID 83649 (SUSE SLED12 / SLES12 Security Update : tigervnc (SUSE-SU-2014:1592-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350079 (Amazon Linux Security Advisory for tigervnc: ALAS-2015-623).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (96947), Tenable (83649), SecurityFocus (BID 70391†) and Vulnerability Center (SBV-47741†). See VDB-68347, VDB-74129, VDB-74989 and VDB-74990 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

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

CVSSv2info

AVACAuCIA
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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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Nessus ID: 83649
Nessus Name: SUSE SLED12 / SLES12 Security Update : tigervnc (SUSE-SU-2014:1592-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2015-623
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/10/2014 🔍
10/10/2014 +0 days 🔍
10/11/2014 +1 days 🔍
10/16/2014 +5 days 🔍
10/16/2014 +0 days 🔍
12/22/2014 +67 days 🔍
03/27/2015 +95 days 🔍
05/20/2015 +54 days 🔍
03/30/2022 +2506 days 🔍

Sourcesinfo

Advisory: Bug 1151307
Researcher: Tim Waug
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-8240 (🔍)
GCVE (CVE): GCVE-0-2014-8240
GCVE (VulDB): GCVE-100-72083

OVAL: 🔍

X-Force: 96947
SecurityFocus: 70391 - TigerVNC Screen Size Handling Integer Overflow Vulnerability
Vulnerability Center: 47741 - TigerVNC 0.0.90 - 1.1.0 Remote Code Execution or DoS Vulnerability due to Heap-Based Buffer Overflow, High

See also: 🔍

Entryinfo

Created: 03/27/2015 12:07
Updated: 03/30/2022 11:44
Changes: 03/27/2015 12:07 (64), 06/16/2017 04:22 (10), 03/30/2022 11:44 (3)
Complete: 🔍
Cache ID: 216:987:103

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