CVE-2024-23744

NameCVE-2024-23744
DescriptionAn issue was discovered in Mbed TLS 3.5.1. There is persistent handshake denial if a client sends a TLS 1.3 ClientHello without extensions.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mbedtls (PTS)stretch (security), stretch (lts), stretch2.4.2-1+deb9u4vulnerable
buster (security), buster, buster (lts)2.16.9-0~deb10u1fixed
bullseye2.16.9-0.1fixed
bookworm2.28.3-1fixed
sid, trixie3.6.2-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mbedtlssourcestretch(unfixed)end-of-life
mbedtlssource(unstable)(not affected)

Notes

- mbedtls <not-affected> (2.x not affected)
https://github.com/Mbed-TLS/mbedtls/issues/8694
https://github.com/Mbed-TLS/mbedtls/pull/8595
Likely specific to 3.5.1: https://github.com/Mbed-TLS/mbedtls/issues/8694#issuecomment-1889411367

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