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CVE-2020-12399 Details

Description

NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.4 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=1631576	CVE	Issue TrackingPermissions RequiredVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html	CVE	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202007-49	CVE	Third Party Advisory
https://usn.ubuntu.com/4421-1/	CVE	Third Party Advisory
https://www.debian.org/security/2020/dsa-4726	CVE	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-20/	CVE	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-21/	CVE	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-22/	CVE	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1631576	[email protected]	Issue TrackingPermissions RequiredVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html	[email protected]	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202007-49	[email protected]	Third Party Advisory
https://usn.ubuntu.com/4421-1/	[email protected]	Third Party Advisory
https://www.debian.org/security/2020/dsa-4726	[email protected]	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-20/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-21/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-22/	[email protected]	Vendor Advisory

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-203	Observable Discrepancy	[email protected]

Affected Products

Product	Versions
mozilla firefox	< 77.0
CPE cpe:2.3:a:mozilla:firefox:::::::: Remediation No remediation found in references.
mozilla firefox esr	< 68.9.0
CPE cpe:2.3:a:mozilla:firefox_esr:::::::: Remediation No remediation found in references.
mozilla thunderbird	< 68.9.0
CPE cpe:2.3:a:mozilla:thunderbird:::::::: Remediation No remediation found in references.
debian debian linux	9.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.

Change History

10 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jan 4, 2022	Modified Analysis	[email protected]
Sep 30, 2020	CVE Modified	[email protected]
Aug 4, 2020	Modified Analysis	[email protected]
Jul 27, 2020	CVE Modified	[email protected]
Jul 22, 2020	CVE Modified	[email protected]
Jul 18, 2020	CVE Modified	[email protected]
Jul 13, 2020	Initial Analysis	[email protected]

CVE-2020-12399 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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