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CVE-2023-49208

Glewlwyd Sso Server Project Glewlwyd Sso Server buffer overflow

9.8 CRITICALEPSS 0.88%
  1. Published23 Nov 2023

Description

scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Glewlwyd Sso Server Project Glewlwyd Sso Server< 2.7.6

Remediation

Fixed in
Glewlwyd Sso Server Project Glewlwyd Sso Server≥ 2.7.6

References

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Frequently asked

Is CVE-2023-49208 being actively exploited?

CVE-2023-49208 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.88%.

How severe is CVE-2023-49208?

CVE-2023-49208 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.88% probability of exploitation.

Which products are affected by CVE-2023-49208?

Affected products include Glewlwyd Sso Server Project Glewlwyd Sso Server.

How do I fix CVE-2023-49208?

Upgrade affected software to a fixed version, for example Glewlwyd Sso Server Project Glewlwyd Sso Server 2.7.6 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-49208 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.