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CVE
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CVE-2020-12399Date: (C)2020-07-10   (M)2024-03-27


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 4.4CVSS Score : 1.2
Exploit Score: 0.8Exploit Score: 1.9
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: HIGHAccess Complexity: HIGH
Privileges Required: LOWAuthentication: NONE
User Interaction: REQUIREDConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: HIGHAvailability: NONE
Integrity: NONE 
Availability: NONE 
  
Reference:
DSA-4726
GLSA-202007-49
USN-4421-1
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
https://bugzilla.mozilla.org/show_bug.cgi?id=1631576
https://www.mozilla.org/security/advisories/mfsa2020-20/
https://www.mozilla.org/security/advisories/mfsa2020-21/
https://www.mozilla.org/security/advisories/mfsa2020-22/

CPE    4
cpe:/o:debian:debian_linux:9.0
cpe:/a:mozilla:firefox_esr
cpe:/a:mozilla:thunderbird
cpe:/a:mozilla:firefox
...
CWE    1
CWE-203
OVAL    25
oval:org.secpod.oval:def:89003011
oval:org.secpod.oval:def:63542
oval:org.secpod.oval:def:63630
oval:org.secpod.oval:def:64127
...

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