LocalTapiola: Secure Client-Initiated Renegotiation

Renegotiation can open the door to attacks. There are two primary worries: CVE-2009-3555: This vulnerability allows a “man-in-the-middle” attacker to inject data into an HTTPS session and execute requests on behalf of the victim. Refer to CVE-2009-3555 for more details. Denial of Service DoS:...

Fortinet FortiOS < 5.2 / 5.4.x < 5.4.6 / 5.6.x < 5.6.1 SSL / TLS Renegotiation Handshakes MitM Plaintext Data Injection (FG-IR-17-137)

The version of Fortinet FortiOS running on the remote device is 5.2.x or prior, 5.4.x prior to 5.4.6, or 5.6.x prior to 5.6.1. It is, therefore, affected by a MITM vulnerability in SSL Deep-Inspection due to insecure TLS renegotiation. C Tenable Network Security, Inc. include"compat.inc"; if...

FortiOS SSL Deep-Inspection possible Insecure Renegotiation

FortiOS SSL Deep-Inspection may enable insecure renegotiation between TLS clients and servers that support secure renegotiation, opening the door to potential Man-in-the-Middle attacks CVE-2009-3555 against the TLS connection, where an attacker could inject arbitrary data in the connection withou...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

DEBIAN-CVE-2015-7944

The RESTful control interface aka RAPI or ganeti-rapi in Ganeti before 2.9.7, 2.10.x before 2.10.8, 2.11.x before 2.11.8, 2.12.x before 2.12.6, 2.13.x before 2.13.3, 2.14.x before 2.14.2, and 2.15.x before 2.15.2, when used in SSL mode, allows remote attackers to cause a denial of service resourc...

UBUNTU-CVE-2015-7944

The RESTful control interface aka RAPI or ganeti-rapi in Ganeti before 2.9.7, 2.10.x before 2.10.8, 2.11.x before 2.11.8, 2.12.x before 2.12.6, 2.13.x before 2.13.3, 2.14.x before 2.14.2, and 2.15.x before 2.15.2, when used in SSL mode, allows remote attackers to cause a denial of service resourc...

CVE-2015-7944

The RESTful control interface aka RAPI or ganeti-rapi in Ganeti before 2.9.7, 2.10.x before 2.10.8, 2.11.x before 2.11.8, 2.12.x before 2.12.6, 2.13.x before 2.13.3, 2.14.x before 2.14.2, and 2.15.x before 2.15.2, when used in SSL mode, allows remote attackers to cause a denial of service resourc...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

OpenSSL handshake renegotiation process in the presence of the vulnerability can lead to denial of service-vulnerability warning-the black bar safety net

One, Foreword OpenSSL is a very popular General-purpose encryption library, available as a Web authentication service to provide SSL/TLS Protocol Implementation. Recently, there has been found in OpenSSL in the presence of several vulnerabilities. We've written several articles on the analysis of...

CVE-2017-3733

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake or vice-versa then this can cause OpenSSL 1.1.0 before 1.1.0e to crash dependent on ciphersuite. Both clients and servers are affected...

CVE-2017-3733

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake or vice-versa then this can cause OpenSSL 1.1.0 before 1.1.0e to crash dependent on ciphersuite. Both clients and servers are affected...

DEBIAN-CVE-2017-3733

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake or vice-versa then this can cause OpenSSL 1.1.0 before 1.1.0e to crash dependent on ciphersuite. Both clients and servers are affected...

UBUNTU-CVE-2017-3733

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake or vice-versa then this can cause OpenSSL 1.1.0 before 1.1.0e to crash dependent on ciphersuite. Both clients and servers are affected...