Tasmota CRtspSession.cpp ClientPortPtr stack-based overflow

CVSS Meta Temp Score
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7.5$0-$5k0.00

A vulnerability was found in Tasmota (affected version not known) and classified as critical. Affected by this issue is some unknown functionality in the library lib/libesp32/rtsp/CRtspSession.cpp. The manipulation of the argument ClientPortPtr with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. CVE summarizes:

Tasmota before commit 066878da4d4762a9b6cb169fdf353e804d735cfd was discovered to contain a stack overflow via the ClientPortPtr parameter at lib/libesp32/rtsp/CRtspSession.cpp.

The weakness was released 11/15/2022. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-43294 since 10/17/2022. There are known technical details, but no exploit is available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

Entry connected to this vulnerability is available at VDB-217749.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

10/17/2022 🔍
11/15/2022 +29 days 🔍
11/15/2022 +0 days 🔍
12/18/2022 +33 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2022-43294 (🔍)
See also: 🔍

Entryinfo

Created: 11/15/2022 10:50 AM
Updated: 12/18/2022 12:09 PM
Changes: 11/15/2022 10:50 AM (39), 12/18/2022 12:09 PM (12)
Complete: 🔍
Cache ID: 98:BFB:40

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