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CVE-2019-16910

CVE information

Published

4 years ago

Last Modified

1 year ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

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Description

Arm Mbed TLS before 2.19.0 and Arm Mbed Crypto before 2.0.0, when deterministic ECDSA is enabled, use an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times. (For Mbed TLS, the fix is also available in versions 2.7.12 and 2.16.3.).

CVSSv2.0 Score

Severity
Low
Base Score
2.6/10
Exploit Score
4.9/10
Access Vector
Network
Access Complexity
High
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
5.3/10
Exploit Score
1.6/10
Access Vector
Network
Access Complexity
High
Privileges Required
None
Impact Score
3.6/10
Confidentiality Impact
High
Availability Impact
None
Integrity Impact
None
Scope
Unchanged
User Interaction
Required

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:arm:mbed_crypto:*:*:*:*:*:*:*:*
  Yes
- 2.0.0
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
  Yes
- 2.7.12
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
  Yes
2.8.0 2.16.3
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
  Yes
2.17.0 2.19.0
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  Yes
- -

References