gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment

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...

Security update for mbedtls-2 (important)

openSUSE Security Update: Security update for mbedtls-2 Announcement ID: openSUSE-SU-2026:0213-1 Rating: important References: 1240051 1240052 Cross-References: CVE-2025-27809 CVE-2025-27810 Affected Products: openSUSE Backports SLE-15-SP7 An update that fixes two vulnerabilities is now available...

CVE-2026-6679: Out-of-bounds Write

A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This...

gnutls security update

3.8.10-4 - Fix CVE-2026-33846 DTLS fragment reassembly, High, heap overwrite - Fix CVE-2026-42009 DTLS fragment reassembly, High, undefined behaviour - Fix CVE-2026-33845 DTLS fragment reassembly, High, heap overread - Fix CVE-2026-42010 PSK authentication, High, authentication bypass - Fix...

gnutls security fix update

3.8.10-4fips - Add FIPS package change: add fips suffix to Release and set Epoch to 10 Orabug: 35925409 - Update FIPS module name for Oracle Linux Orabug: 35925409 3.8.10-4 - Fix CVE-2026-33846 DTLS fragment reassembly, High, heap overwrite - Fix CVE-2026-42009 DTLS fragment reassembly, High,...

ROOT-APP-GOBINARY-CVE-2026-26014 CVE-2026-26014 in rootio-github.com/pion/dtls/v2 - Patched by Root

Root has patched CVE-2026-26014 in the rootio-github.com/pion/dtls/v2 package for Root:Go. Multiple fixed versions available...

Important: Red Hat Security Advisory: gnutls security update

An update for gnutls is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 10 : gnutls (RHSA-2026:26409)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:26409 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such ...

SUSE SLES12 Security Update : gnutls (SUSE-SU-2026:2366-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2366-1 advisory. This update for gnutls fixes the following issues - CVE-2026-33845: buffers: switch from endoffset over to fraglength bsc1263704. -...

SUSE SLES12 Security Update : gnutls (SUSE-SU-2026:2367-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2367-1 advisory. This update for gnutls fixes the following issues - CVE-2026-33845: buffers: switch from endoffset over to fraglength bsc1263704. -...

Security update for gnutls

This update for gnutls fixes the following issues CVE-2026-33845: buffers: switch from endoffset over to fraglength bsc1263704. CVE-2026-33846: buffers: add more checks to DTLS reassembly bsc1263705. CVE-2026-42009: lib/buffers: ensure packets have differing sequence numbers bsc1263708. Patch...

Security update for gnutls

This update for gnutls fixes the following issues CVE-2026-33845: buffers: switch from endoffset over to fraglength bsc1263704. CVE-2026-33846: buffers: add more checks to DTLS reassembly bsc1263705. CVE-2026-42009: lib/buffers: ensure packets have differing sequence numbers bsc1263708. Patch...

Important: gnutls

Issue Overview: A remotely triggerable underflow in the DTLS reassembly code led to a heap overrun. The issue was reported in the issue tracker as 1811 by Joshua Rogers of AISLE Research Team. CVE-2026-33845 GnuTLS didn't check that DTLS fragments claimed a consistent messagelength value...

Amazon Linux 2 : gnutls, --advisory ALAS2-2026-3324 (ALAS-2026-3324)

The version of gnutls installed on the remote host is prior to 3.3.29-9. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3324 advisory. A remotely triggerable underflow in the DTLS reassembly code led to a heap overrun. The issue was reported in the issue...

TencentOS Server 4: gnutls (TSSA-2026:0305)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0305 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

CVE-2026-5264

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow...

RLSA-2026:20613 Important: gnutls security update

The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS. Security Fixes: gnutls: Fix qsort comparator in DTLS reassembly CVE-2026-42009 gnutls: Fix crashing on an underflow with a DTLS datagram...

gnutls security update

An update is available for gnutls. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The gnutls packages provide the GNU Transport Layer Security GnuTLS library,...

RockyLinux 10 : gnutls (RLSA-2026:20613)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:20613 advisory. gnutls: Fix qsort comparator in DTLS reassembly CVE-2026-42009 gnutls: Fix crashing on an underflow with a DTLS datagram CVE-2026-33845 gnutls: Fix...

Oracle Linux 8 : gnutls (ELSA-2026-20611)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-20611 advisory. - Fix CVE-2026-33846 DTLS fragment reassembly, High, heap overwrite - Fix CVE-2026-42009 DTLS fragment reassembly, High, undefined behaviour - Fix...