Use of a broken or risky cryptographic algorithm in firefox (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-12400 |
| CWE-ID | CWE-327 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
firefox (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Use of a broken or risky cryptographic algorithm
EUVDB-ID: #VU45797
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-12400
CWE-ID:
CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists in Mozilla NSS library in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key.
MitigationInstall update from vendor's website.
Vulnerable software versionsfirefox (Alpine package): 76.0.1-r1 - 77.0.1-r4
External linkshttp://git.alpinelinux.org/aports/commit/?id=ec7853eade2b7d671bc10bb748c69725d946a4fa
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
