CVE-2024-50383

Botan before 3.6.0, when certain GCC versions are used, has a compiler-induced secret-dependent operation in lib/utils/donna128.h in donna128 (used in Chacha-Poly1305 and x25519). An addition can be skipped if a carry is not set. This was observed for GCC 11.3.0 with -O2 on MIPS, and GCC on x86-i386. (Only 32-bit processors can be affected.)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
mitreCNA
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CISA-ADPADP
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 29%
VendorProductVersion
botan_projectbotan
𝑥
< 3.6.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
botan
bullseye
postponed
bookworm
2.19.3+dfsg-1+deb12u1
fixed
forky
2.19.5+dfsg-4
fixed
sid
2.19.5+dfsg-4
fixed
trixie
2.19.5+dfsg-4
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
botan
questing
not-affected
plucky
not-affected
oracular
Fixed 2.19.3+dfsg-1ubuntu2.1
released
noble
Fixed 2.19.3+dfsg-1ubuntu2+esm1
released
jammy
Fixed 2.19.1+dfsg-2ubuntu1+esm1
released
focal
needed
bionic
ignored
oscar
questing
needs-triage
plucky
needs-triage
oracular
ignored
noble
needs-triage
jammy
needs-triage
focal
needs-triage
thunderbird
questing
not-affected
plucky
not-affected
oracular
not-affected
noble
not-affected
jammy
not-affected
focal
dne
Common Weakness Enumeration
References
https://arxiv.org/pdf/2410.13489
https://github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957
https://github.com/randombit/botan/compare/3.5.0...3.6.0
https://news.ycombinator.com/item?id=41887153