Fluid Attacks Database

Description

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
debian 11	gnutls28	=3.7.1-5 \|\| =3.7.1-5+deb11u1 \|\| =3.7.1-5+deb11u2 \|\| =3.7.1-5+deb11u3 \|\| =3.7.1-5+deb11u4 \|\| =3.7.1-5+deb11u5 \|\| =3.7.1-5+deb11u6 \|\| =3.7.1-5+deb11u7 \|\| =3.7.1-5+deb11u8 \|\| =3.7.1-5+deb11u9 \|\| >=0 <3.7.1-5+deb11u10	3.7.1-5+deb11u10
debian 12	gnutls28	=3.7.9-2 \|\| =3.7.9-2+deb12u1 \|\| =3.7.9-2+deb12u2 \|\| =3.7.9-2+deb12u3 \|\| =3.7.9-2+deb12u4 \|\| =3.7.9-2+deb12u5 \|\| =3.7.9-2+deb12u6 \|\| >=0 <3.7.9-2+deb12u7	3.7.9-2+deb12u7
debian 13	gnutls28	=3.8.9-3 \|\| =3.8.9-3+deb13u1 \|\| =3.8.9-3+deb13u2 \|\| =3.8.9-3+deb13u3 \|\| >=0 <3.8.9-3+deb13u4	3.8.9-3+deb13u4
debian 14	gnutls28	=3.8.10-1 \|\| =3.8.10-2 \|\| =3.8.10-3 \|\| =3.8.11-1 \|\| =3.8.11-2 \|\| =3.8.11-3 \|\| =3.8.12-1 \|\| =3.8.12-2 \|\| =3.8.12-3 \|\| =3.8.12-4 \|\| =3.8.9-3 \|\| >=0 <3.8.13-1	3.8.13-1
rpm rhel10	gnutls	<0:3.8.10-4.el10_2	0:3.8.10-4.el10_2
rpm rhel8	gnutls	<0:3.6.16-8.el8_10.6	0:3.6.16-8.el8_10.6
alpine v3.22	gnutls	>=0 <3.8.13-r0	3.8.13-r0
alpine v3.23	gnutls	>=0 <3.8.13-r0	3.8.13-r0
alpine v3.21	gnutls	>=0 <3.8.13-r0	3.8.13-r0
rpm rhel7	gnutls	-	-

1-10 of 19

Aliases

1. CVE-2026-338452. NVD-2026-338453. OSV-DEBIAN-2026-338454. OSV-2026-338455. OSV-ALPINE-2026-338456. SECURITY-TRACKER-CVE-2026-338457. SECURITY-CVE-2026-33845

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