CVE-2012-3543

mono 2.10.x ASP.NET Web Form Hash collision DoS

Mono 2.10.9 does not properly randomize hash functions for form posts to protect against hash collision attacks. A remote attacker could send specially crafted parameters, possibly resulting in a Denial of Service condition (CVE-2012-3543).

mono-core was updated to fix the following vulnerabilities:

• CVE-2009-0689: Remote attackers could cause a denial of service and possibly arbitrary code execution through the string-to-double parser implementation (bsc#958097)
• CVE-2012-3543: Remote attackers could cause a denial of service through increased CPU consumption due to lack of protection against predictable hash collisions when processing form parameters (bsc#739119)

mono-core was updated to fix the following vulnerabilities:

• CVE-2009-0689: Remote attackers could cause a denial of service and possibly arbitrary code execution through the string-to-double parser implementation. (bsc#958097)
• CVE-2012-3543: Remote attackers could cause a denial of service through increased CPU consumption due to lack of protection against predictable hash collisions when processing form parameters. (bsc#739119)

It was discovered that the Mono TLS implementation was vulnerable to the SKIP-TLS vulnerability. A remote attacker could possibly use this issue to perform client impersonation attacks. (CVE-2015-2318)

It was discovered that the Mono TLS implementation was vulnerable to the FREAK vulnerability. A remote attacker or a machine-in-the-middle could possibly use this issue to force the use of insecure ciphersuites. (CVE-2015-2319)

It was discovered that the Mono TLS implementation still supported a fallback to SSLv2. This update removes the functionality as use of SSLv2 is known to be insecure. (CVE-2015-2320)

It was discovered that Mono incorrectly handled memory in certain circumstances. A remote attacker could possibly use this issue to cause Mono to crash, resulting in a denial of service, or to obtain sensitive information. This issue only applied to Ubuntu 12.04 LTS. (CVE-2011-0992)

It was discovered that Mono incorrectly handled hash collisions. A remote attacker could possibly use this issue to cause Mono to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS. (CVE-2012-3543)