7.5high

CVE-2016-6885

The pstm_exptmod function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid free and crash) via a bas…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.3%
percentile 71%
Public exploits
0
none known

Summary

The pstm_exptmod function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid free and crash) via a base zero value for the modular exponentiation.

Exploit prediction (EPSS)

1.33% probability of exploitation in the next 30 days, higher than 71% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

  • matrixssl.org /blog/releases/matrixssl_3_8_4 · x_refsource_CONFIRM, x_transferred
  • blog.fuzzing-project.org /51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html · x_refsource_MISC, x_transferred

Sources

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