CVE-2020-12399

Reference Links

• https://bugzilla.mozilla.org/show_bug.cgi?id=1631576
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-22/
• https://www.mozilla.org/security/advisories/mfsa2020-20/
• https://www.mozilla.org/security/advisories/mfsa2020-21/
• https://www.mozilla.org/security/advisories/mfsa2020-22/
• https://www.debian.org/security/2020/dsa-4726
• https://usn.ubuntu.com/4421-1/
• https://security.gentoo.org/glsa/202007-49
• https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
• https://launchpad.net/bugs/cve/CVE-2020-12399
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-22/#CVE-2020-12410
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-21/
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-20/
• https://hg.mozilla.org/projects/nss/rev/daa823a4a29bcef0fec33a379ec83857429aea2e
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-20/#CVE-2020-12399
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-21/#CVE-2020-12399
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-22/#CVE-2020-12399
• https://security-tracker.debian.org/tracker/CVE-2020-12399
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12399
• https://nvd.nist.gov/vuln/detail/CVE-2020-12399
• https://ubuntu.com/security/CVE-2020-12399

Parent vulnerabilities

(Appears in the following advisories)

• MFSA2020-22
• MFSA2020-21
• MFSA2020-20

Peer vulnerabilities

(Found alongside the following vulnerabilities)

• CVE-2020-12399
• CVE-2020-12405
• CVE-2020-12406
• CVE-2020-12410
• CVE-2020-12398
• CVE-2020-12407
• CVE-2020-12408
• CVE-2020-12409
• CVE-2020-12411

Frequently Asked Questions

• What is the severity of CVE-2020-12399?

  The severity of CVE-2020-12399 is high, with a severity value of 4.4.

• Which software is affected by CVE-2020-12399?

  Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9 are affected by CVE-2020-12399.

• What is the impact of CVE-2020-12399?

  CVE-2020-12399 could eventually leak private keys due to timing differences in DSA signatures.

• How can I fix the vulnerability CVE-2020-12399?

  To fix the vulnerability CVE-2020-12399, update Thunderbird to version 68.9.0 or later, update Firefox to version 77 or later, and update Firefox ESR to version 68.9 or later.

• Where can I find more information about CVE-2020-12399?

  You can find more information about CVE-2020-12399 on the Mozilla bugzilla page (https://bugzilla.mozilla.org/show_bug.cgi?id=1631576), the Mozilla security advisories page (https://www.mozilla.org/en-US/security/advisories/mfsa2020-20/#CVE-2020-12399), and the Mozilla projects page (https://hg.mozilla.org/projects/nss/rev/daa823a4a29bcef0fec33a379ec83857429aea2e).