Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU29196
Risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2020-13822
CWE-ID:
CWE-310 - Cryptographic Issues
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to comrpomise the target system.
The vulnerability exists due to the affected software allows ECDSA signature malleability via variations in encoding, leading "\0" bytes, or integer overflows. A remote attacker can cause a security-relevant impact if an application relied on a single canonical signature.
MitigationInstall updates from vendor's website.
Vulnerable software versionselliptic: 6.5.2
CPE2.3 External linkshttps://github.com/indutny/elliptic/issues/226
https://medium.com/@herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
https://www.npmjs.com/package/elliptic
https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/
https://www.npmjs.com/advisories/1547
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.