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 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.9 MEDIUM
PHYSICAL
HIGH
NONE
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 25%
VendorProductVersion
libtomlibtomcrypt
𝑥
≤ 1.18.1
linaroop-tee
𝑥
≤ 3.5.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libtomcrypt
bullseye
1.18.2-5
fixed
stretch
no-dsa
jessie
no-dsa
bookworm
1.18.2-6
fixed
sid
1.18.2+dfsg-7
fixed
trixie
1.18.2+dfsg-7
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libtomcrypt
bionic
Fixed 1.18.1-1ubuntu0.1
released
artful
ignored
xenial
Fixed 1.17-7ubuntu0.1
released
trusty
Fixed 1.17-5ubuntu0.1
released
Common Weakness Enumeration
References
https://security.gentoo.org/glsa/202007-53
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
https://security.gentoo.org/glsa/202007-53
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/