CVE-2026-33845

Discovered by AISLEPUBLISHEDCWE-191

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.

CVSS Base Scores

CVSS v3.1(Primary)

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Version	Status
Red Hat	GnuTLS	0	affected
Red Hat	GnuTLS	0:3.8.10-4.el10_2	unaffected
Red Hat	GnuTLS	0:3.8.9-9.el10_0.19	—
Red Hat	GnuTLS	0:3.3.29-9.el7_9.1	—
Red Hat	GnuTLS	0:3.6.16-8.el8_10.6	—
Red Hat	GnuTLS	0:3.6.14-10.el8_4.1	—
Red Hat	GnuTLS	0:4.13-3.el8_4.1	—
Red Hat	GnuTLS	0:3.6.16-5.el8_6.5	—
Red Hat	GnuTLS	0:4.13-3.el8_6.2	—
Red Hat	GnuTLS	0:3.6.16-7.el8_8.4	—
Red Hat	GnuTLS	0:4.13-4.el8_8.1	—
Red Hat	GnuTLS	0:3.8.10-4.el9_8	—
Red Hat	GnuTLS	0:3.8.3-4.el9_4.6	—
Red Hat	GnuTLS	0:3.8.3-6.el9_6.4	—
Red Hat	GnuTLS	1782159791	—
Red Hat	GnuTLS	1782166952	—
Red Hat	GnuTLS	3.8.13-1.hum1	—
Red Hat	GnuTLS	1781525684	—
Red Hat	GnuTLS	1781525671	—
Red Hat	GnuTLS	1781525693	—
Red Hat	GnuTLS	1781525739	—

Description

CVSS Base Scores

Affected Products

References