Linux Kernel up to 6.0.6 PCMCIA Device cm4040_cs.c cm4040_open use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.0.6. This impacts the function cm4040_open of the file drivers/char/pcmcia/cm4040_cs.c of the component PCMCIA Device Handler. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2022-44033. It is possible to launch the attack on the physical device. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.0.6 (Operating System). It has been rated as problematic. This issue affects the function cm4040_open of the file drivers/char/pcmcia/cm4040_cs.c of the component PCMCIA Device Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in the Linux kernel through 6.0.6. drivers/char/pcmcia/cm4040_cs.c has a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling open(), aka a race condition between cm4040_open() and reader_detach().

The weakness was disclosed 10/31/2022. It is possible to read the advisory at lore.kernel.org. The identification of this vulnerability is CVE-2022-44033 since 10/30/2022. Technical details of the vulnerability are known, but there is no available exploit.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.9
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/30/2022 🔍
10/31/2022 +1 days 🔍
10/31/2022 +0 days 🔍
11/26/2022 +26 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lore.kernel.org
Status: Confirmed

CVE: CVE-2022-44033 (🔍)
GCVE (CVE): GCVE-0-2022-44033
GCVE (VulDB): GCVE-100-212507

Entryinfo

Created: 10/31/2022 17:51
Updated: 11/26/2022 15:00
Changes: 10/31/2022 17:51 (41), 11/26/2022 15:00 (12)
Complete: 🔍
Cache ID: 216::103

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