CVE-2024-28836

An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When negotiating the TLS version on the server side, it can fall back to the TLS 1.2 implementation of the protocol if it is disabled. If the TLS 1.2 implementation was disabled at build time, a TLS 1.2 client could put a TLS 1.3-only server into an infinite loop processing a TLS 1.2 ClientHello, resulting in a denial of service. If the TLS 1.2 implementation was disabled at runtime, a TLS 1.2 client can successfully establish a TLS 1.2 connection with the server.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
mitreCNA
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CISA-ADPADP
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVEADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
Debian logo
Debian Releases
Debian Product
Codename
mbedtls
bullseye
2.16.9-0.1
fixed
bookworm
2.28.3-1
fixed
sid
3.6.3-1
fixed
trixie
3.6.3-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mbedtls
plucky
needs-triage
oracular
needs-triage
noble
needs-triage
mantic
ignored
jammy
needs-triage
focal
needs-triage
bionic
needs-triage
xenial
needs-triage