CVE-2019-9155

Public Exploit

Description

A cryptographic issue in OpenPGP.js <=4.2.0 allows an attacker who is able provide forged messages and gain feedback about whether decryption of these messages succeeded to conduct an invalid curve attack in order to gain the victim's ECDH private key.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.29%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory sec-consult.com Third-Party Advisory bund.de
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/ third party advisory exploit
https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1 third party advisory
https://github.com/openpgpjs/openpgpjs/releases/tag/v4.3.0 release notes
https://github.com/openpgpjs/openpgpjs/pull/853 third party advisory
https://github.com/openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43e third party advisory patch
http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-9155?
CVE-2019-9155 has been scored as a medium severity vulnerability.
How to fix CVE-2019-9155?
To fix CVE-2019-9155, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-9155 being actively exploited in the wild?
It is possible that CVE-2019-9155 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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