CVE-2025-6395

A NULL pointer dereference flaw was found in the GnuTLS software in _gnutls_figure_common_ciphersuite(). When it reads certain settings from a template file, it can allow an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial of service (DoS) that could crash the system.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
redhatCNA
6.5 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CISA-ADPADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
gnutls28
bullseye
vulnerable
bullseye (security)
vulnerable
bookworm
vulnerable
bookworm (security)
vulnerable
trixie
vulnerable
sid
3.8.9-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gnutls28
plucky
needed
oracular
ignored
noble
needed
jammy
needs-triage
focal
needs-triage
bionic
needs-triage
xenial
needs-triage