TigerVNC up to 1.10.0 decodeRect heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in TigerVNC up to 1.10.0. This impacts the function DecodeManager::decodeRect. Such manipulation leads to heap-based overflow. This vulnerability is listed as CVE-2019-15694. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in TigerVNC up to 1.10.0. Affected by this issue is the function DecodeManager::decodeRect. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which could be triggered from DecodeManager::decodeRect. Vulnerability occurs due to the signdness error in processing MemOutStream. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

The weakness was presented 12/26/2019 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2019-15694 since 08/27/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 1.10.1 eliminates this vulnerability.

See VDB-147725, VDB-147727 and VDB-147729 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

License

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: Heap-based overflow
CWE: CWE-122 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: TigerVNC 1.10.1
Patch: github.com

Timelineinfo

08/27/2019 🔍
12/26/2019 +121 days 🔍
12/27/2019 +1 days 🔍
03/17/2024 +1542 days 🔍

Sourcesinfo

Advisory: 0943c006c7d900dfc0281639e992791d6c567438
Status: Not defined

CVE: CVE-2019-15694 (🔍)
GCVE (CVE): GCVE-0-2019-15694
GCVE (VulDB): GCVE-100-147728
See also: 🔍

Entryinfo

Created: 12/27/2019 08:07
Updated: 03/17/2024 08:46
Changes: 12/27/2019 08:07 (39), 12/27/2019 08:12 (17), 03/17/2024 08:46 (6)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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