CVEvulnerability
CVE-2020-12399
4.4 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-07-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.4 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 1.2 LOW — AV:L/AC:H/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-203
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.
Affected configurations
• mozilla firefox (< 77.0)
• mozilla firefox esr (< 68.9.0)
• mozilla thunderbird (< 68.9.0)
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-203 Observable Discrepancy weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1631576 Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202007-49 Third Party Advisory
- https://usn.ubuntu.com/4421-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4726 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-20/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-21/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-22/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1631576 Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202007-49 Third Party Advisory
- https://usn.ubuntu.com/4421-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4726 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-20/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-21/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-22/ Vendor Advisory