5.9med

CVE-2019-9155

Invalid Curve Attack in openpgp

Also known as GHSA-77jf-fjjf-xcww

Published 7 y ago · modified 4 mo ago · JSON

CVSS
5.9
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.7%
percentile 77%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

1.71% probability of exploitation in the next 30 days, higher than 77% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:P/I:N/A:N
GitHub3.05.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

EcosystemPackageAffectedFixed in
npmopenpgp
<4.3.0
4.3.0

Classification

Weakness
  • CWE-327 Use of a Broken or Risky Cryptographic Algorithm

References

  • sec-consult.com /en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/ · x_refsource_MISC, x_transferred
  • bsi.bund.de /SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensi · x_refsource_MISC, x_transferred
  • github.com /openpgpjs/openpgpjs/releases/tag/v4.3.0 · x_refsource_CONFIRM, x_transferred
  • github.com /openpgpjs/openpgpjs/pull/853 · x_refsource_CONFIRM, x_transferred
  • github.com /openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43e · x_refsource_CONFIRM, x_transferred
  • packetstormsecurity.com /files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html · x_refsource_MISC, x_transferred
  • nvd.nist.gov /vuln/detail/CVE-2019-9155 · advisory
  • sec-consult.com /en/blog/advisories/multiple-vulnerabilities-in-openpgp-js · web
  • snyk.io /vuln/SNYK-JS-OPENPGP-460225 · web
  • npmjs.com /advisories/1159 · web

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.