Wind River VxWorks up to 6.9.3 TCP memory corruption

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

A vulnerability was found in Wind River VxWorks up to 6.9.3. It has been classified as critical. Affected is an unknown part of the component TCP Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Wind River VxWorks 6.5 through 6.9.3 has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TCP Urgent Pointer = 0 that leads to an integer underflow. Affected versions: 6.6, 6.7, 6.8, 6.9

The weakness was presented 08/09/2019 as VXW6-87100 (Website). The advisory is available at cert-portal.siemens.com. This vulnerability is traded as CVE-2019-12255 since 05/21/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 7 (SR620) eliminates this vulnerability.

See 139759, 139760, 139761 and 139762 for similar entries.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

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: VxWorks 7 (SR620)

Timelineinfo

05/21/2019 🔍
08/09/2019 +80 days 🔍
08/10/2019 +1 days 🔍
07/24/2020 +349 days 🔍

Sourcesinfo

Advisory: VXW6-87100
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-12255 (🔍)
See also: 🔍

Entryinfo

Created: 08/10/2019 06:41
Updated: 07/24/2020 07:12
Changes: 08/10/2019 06:41 (43), 07/24/2020 07:12 (17)
Complete: 🔍

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