vulnwire
4.9med

CVE-2018-12437

LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or RO…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
4.9
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 45%
Public exploits
0
none known

LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Exploit prediction (EPSS)

0.54% probability of exploitation in the next 30 days, higher than 45% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.14.9CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
NVD2.01.9AV:L/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

  • nccgroup.trust /us/our-research/technical-advisory-return-of-the-hidden-number-problem/ · x_refsource_MISC, x_transferred
  • security.gentoo.org /glsa/202007-53 · vendor-advisory, x_refsource_GENTOO, x_transferred

Sources

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