Yubico libu2f-host up to 1.1.7 devs.c Memory memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Yubico libu2f-host up to 1.1.7. This impacts an unknown function of the file devs.c. This manipulation causes memory corruption (Memory). This vulnerability is handled as CVE-2019-9578. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Yubico libu2f-host up to 1.1.7. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the file devs.c. The manipulation with an unknown input leads to a memory corruption vulnerability (Memory). The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

In devs.c in Yubico libu2f-host before 1.1.8, the response to init is misparsed, leaking uninitialized stack memory back to the device.

The bug was discovered 02/22/2019. The weakness was released 03/05/2019 (Website). It is possible to read the advisory at lists.fedoraproject.org. This vulnerability is known as CVE-2019-9578 since 03/05/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.1.8 eliminates this vulnerability.

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

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Memory
Class: Memory corruption / Memory
CWE: 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: libu2f-host 1.1.8
Patch: github.com

Timelineinfo

02/22/2019 🔍
03/05/2019 +11 days 🔍
03/05/2019 +0 days 🔍
03/06/2019 +1 days 🔍
07/26/2023 +1603 days 🔍

Sourcesinfo

Product: github.com

Advisory: e4bb58cc8b6202a421e65f8230217d8ae6e16eb5
Status: Not defined

CVE: CVE-2019-9578 (🔍)
GCVE (CVE): GCVE-0-2019-9578
GCVE (VulDB): GCVE-100-131371

Entryinfo

Created: 03/06/2019 08:56
Updated: 07/26/2023 18:05
Changes: 03/06/2019 08:56 (58), 05/14/2020 09:17 (2), 07/26/2023 17:58 (5), 07/26/2023 18:05 (1)
Complete: 🔍
Cache ID: 216::103

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

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