CVE-2018-12435

Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. 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
5.9 MEDIUM
LOCAL
HIGH
NONE
CVSS:3.0/AV:L/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: 37%
VendorProductVersion
botan_projectbotan
2.5.0 ≤
𝑥
≤ 2.7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
botan
bullseye
2.17.3+dfsg-2
fixed
bookworm
2.19.3+dfsg-1
fixed
sid
2.19.5+dfsg-3
fixed
trixie
2.19.5+dfsg-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
botan
eoan
not-affected
disco
not-affected
cosmic
not-affected
bionic
not-affected
artful
dne
xenial
dne
trusty
dne
botan1.10
eoan
dne
disco
dne
cosmic
ignored
bionic
not-affected
artful
ignored
xenial
not-affected
trusty
not-affected
Common Weakness Enumeration
References
https://botan.randombit.net/security.html
https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
https://botan.randombit.net/security.html
https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/