CVE-2020-13131

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Summary

CVECVE-2020-13131
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-07-09 18:15:00 UTC
Updated2020-07-16 19:04:00 UTC
DescriptionAn issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will cause stack memory to be copied into heap allocated memory that gets returned to the caller. The leaked memory could include PINs, passwords, key material, and other sensitive information depending on the integration. During further processing by the caller, this information could leak across trust boundaries. Note that RSA key generation is triggered by the host and cannot directly be triggered by the token.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Yubico Libykpiv All All All All
Application Yubico Libykpiv All All All All
Application Yubico Piv Tool Manager All All All All
Application Yubico Piv Tool Manager All All All All
Application Yubico Yubikey Smart Card Minidriver All All All All

References

ReferenceSourceLinkTags
Yubico libykpiv vulnerabilities | invd blog MISC blog.inhq.net Exploit, Third Party Advisory
Smart Card Drivers and Tools | YubiKey | Yubico CONFIRM www.yubico.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180751 Debian Security Update for yubico-piv-tool (CVE-2020-13131)
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