TigerVNC up to 1.10.0 ZRLEDecoder Variable expired pointer dereference

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

Summaryinfo

A vulnerability marked as critical has been reported in TigerVNC up to 1.10.0. The affected element is an unknown function of the component ZRLEDecoder. The manipulation as part of Variable leads to expired pointer dereference. This vulnerability is referenced as CVE-2019-15691. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in TigerVNC up to 1.10.0. It has been rated as critical. This issue affects an unknown code of the component ZRLEDecoder. The manipulation as part of a Variable leads to a expired pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-825. The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

The weakness was published 12/26/2019 (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2019-15691 since 08/27/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.10.1 eliminates this vulnerability.

Similar entries are available at VDB-147727, VDB-147728 and VDB-147729. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

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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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Expired pointer dereference
CWE: CWE-825
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: d61a767d6842b530ffb532ddd5a3d233119aad40
Status: Not defined

CVE: CVE-2019-15691 (🔍)
GCVE (CVE): GCVE-0-2019-15691
GCVE (VulDB): GCVE-100-147725
See also: 🔍

Entryinfo

Created: 12/27/2019 08:07
Updated: 03/17/2024 08:40
Changes: 12/27/2019 08:07 (40), 12/27/2019 08:12 (17), 03/17/2024 08:40 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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