Bypassing Access Restrictions via Incompatible Key-Usage Certificate in NSS 3.15

CVE-2013-5606 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:P/A:N

The CERT_VerifyCert function in lib/certhigh/certvfy.c in Mozilla Network Security Services (NSS) 3.15 before 3.15.3 provides an unexpected return value for an incompatible key-usage certificate when the CERTVerifyLog argument is valid, which might allow remote attackers to bypass intended access restrictions via a crafted certificate.

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