Debian Security Bug TrackerDEBIANCVE:CVE-2020-12402CVE-2020-12402
4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
1.2 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:H/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
27.9%
During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes. Note: An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected, but products built on top of it might. This vulnerability affects Firefox < 78.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | nss | < 2:3.53.1-1 | nss_2:3.53.1-1_all.deb |
| Debian | 11 | all | nss | < 2:3.53.1-1 | nss_2:3.53.1-1_all.deb |
| Debian | 10 | all | nss | < 2:3.42.1-1+deb10u3 | nss_2:3.42.1-1+deb10u3_all.deb |
| Debian | 999 | all | nss | < 2:3.53.1-1 | nss_2:3.53.1-1_all.deb |
| Debian | 13 | all | nss | < 2:3.53.1-1 | nss_2:3.53.1-1_all.deb |
Related
4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
1.2 Low
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:H/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
27.9%