CVE-2019-11727

N/A
Published: July 23, 2019 at 01:16 PM UTC
Updated: June 17, 2026 at 02:13 AM UTC
1 product affected across 1 vendorFirefox

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Severity
N/A
Exploit prediction
EPSS 2%

Description

A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 68
Affected range stops below 68, so it looks safe — our inference, not a vendor statement
Affected range stops below 68.0, so it looks safe — our inference, not a vendor statement

CVSS

Confidentiality
NONE
Integrity
PARTIAL
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-295

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