CVE-2022-20795 Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense Software AnyConnect SSL VPN Denial of Service Vulnerability

A vulnerability in the implementation of the Datagram TLS DTLS protocol in Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service DoS condition...

[SECURITY] Fedora 33 Update: gnutls-3.6.16-1.fc33

GnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them. It provides a simple C language application programming interface API to access the secure communications protocols as well as APIs to parse and write X.509, PKCS 12, OpenPGP and...

DDoS attacks in Q1 2021

News overview Q1 2021 saw the appearance of two new botnets. News broke in January of the FreakOut malware, which attacks Linux devices. Cybercriminals exploited several critical vulnerabilities in programs installed on victim devices, including the newly discovered CVE-2021-3007. Botnet operator...

IBM HTTP Server 8.5.0.0 <= 8.5.0.2 / 8.0.0.0 <= 8.0.0.6 / 7.0.0.0 <= 7.0.0.27 / 6.1.0.0 <= 6.1.0.45 (491407)

The version of IBM HTTP Server running on the remote host is affected by a vulnerability. The TLS protocol 1.1 and 1.2 and the DTLS protocol 1.0 and 1.2, as used in OpenSSL, OpenJDK, PolarSSL, and other products, do not properly consider timing side-channel attacks on a MAC check requirement duri...

Updated gnutls packages fix security vulnerability

Updated gnutls packages fix security vulnerability: A flaw was reported in the DTLS protocol implementation in GnuTLS. The DTLS client would not contribute any randomness to the DTLS negotiation, breaking the security guarantees of the DTLS protocol CVE-2020-11501...

MGASA-2020-0168 Updated gnutls packages fix security vulnerability

Updated gnutls packages fix security vulnerability: A flaw was reported in the DTLS protocol implementation in GnuTLS. The DTLS client would not contribute any randomness to the DTLS negotiation, breaking the security guarantees of the DTLS protocol CVE-2020-11501...

CVE-2020-11501

A cryptographic weakness was found in the way DLTS implementation of GnuTLS, used zeros in place of random numbers. This flaw can break the security guarantee of the DTLS protocol...

Debian: Security Advisory (DSA-4652-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] [DSA 4652-1] gnutls28 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4652-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso April 04, 2020 https://www.debian.org/security/faq -...

[SECURITY] [DSA 4652-1] gnutls28 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4652-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso April 04, 2020 https://www.debian.org/security/faq -...

Code injection

GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 2018-07-16 because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks...

CVE-2020-11501

CVE-2020-11501 affects GnuTLS 3.6.x prior to 3.6.13. The DTLS client uses 32 null bytes instead of random values during DTLS negotiations, removing randomness and breaking DTLS security guarantees. Affected range starts at 3.6.3 (2018-07-16) due to a 2017-10-06 commit. The issue was fixed in 3.6....

Fedora: Security Advisory for coturn (FEDORA-2020-f3fcb1608a)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

FreeBSD : GnuTLS -- flaw in DTLS protocol implementation (d887b3d9-7366-11ea-b81a-001cc0382b2f)

The GnuTLS project reports : It was found that GnuTLS 3.6.3 introduced a regression in the DTLS protocol implementation. This caused the DTLS client to not contribute any randomness to the DTLS negotiation breaking the security guarantees of the DTLS protocol. C Tenable Network Security, Inc. The...

[slackware-security] gnutls

New gnutls packages are available for Slackware 14.2 and -current to fix a security issue. Here are the details from the Slackware 14.2 ChangeLog: patches/packages/gnutls-3.6.13-i586-1slack14.2.txz: Upgraded. This update fixes a security issue: libgnutls: Fix a DTLS-protocol regression caused by...

Timing Side-Channel

Network Security Services NSS is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. Netscape Portable Runtime NSPR provides platform independence for non-GUI operating system facilities. It was discovered that NSS leaked timin...

DEBIAN-CVE-2016-2179

The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial of service memory consumption by maintaining many crafted DTLS sessions simultaneously, related to...

Amazon Linux: Security Advisory (ALAS-2014-273)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Amazon Linux: Security Advisory (ALAS-2014-320)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Oracle Solaris Third-Party Patch Update : openssl (lucky_thirteen_vulnerability_in_solaris)

The remote Solaris system is missing necessary patches to address security updates : - OpenSSL before 0.9.8y, 1.0.0 before 1.0.0k, and 1.0.1 before 1.0.1d does not properly perform signature verification for OCSP responses, which allows remote OCSP servers to cause a denial of service NULL pointe...