Mandriva Linux Security Advisory - Multiple buffer overflows in yaSSL, which is used in MySQL, allowed remote attackers to execute arbitrary code. a denial of service via a special Hello packet. Sergei Golubchik found that MySQL did not properly validate optional data or index directory paths given in a CREATE TABLE statement; as well it would not, under certain conditions, prevent two databases from using the same paths for data or index files. This could allow an authenticated user with appropriate privilege to create tables in one database to read and manipulate data in tables later created in other databases, regardless of GRANT privileges. The updated packages have been patched to correct these issues.
344a69b94fd6da8ff62ed01ddc6d2cced715bfbbc1409d0cbfe492c82bdb483bUbuntu Security Notice 588-2 - USN-588-1 fixed vulnerabilities in MySQL. In fixing CVE-2007-2692 for Ubuntu 6.06, additional improvements were made to make privilege checks more restrictive. As a result, an upstream bug was exposed which could cause operations on tables or views in a different database to fail. This update fixes the problem.
7b3e0c3b9aac237bc56c8aa95c0492465ee731361e13d7ca3e16a16caaa29be0Ubuntu Security Notice 588-1 - Masaaki Hirose discovered that MySQL could be made to dereference a NULL pointer. An authenticated user could cause a denial of service (application crash) via an EXPLAIN SELECT FROM on the INFORMATION_SCHEMA table. This issue only affects Ubuntu 6.06 and 6.10. Alexander Nozdrin discovered that MySQL did not restore database access privileges when returning from SQL SECURITY INVOKER stored routines. An authenticated user could exploit this to gain privileges. This issue does not affect Ubuntu 7.10. Martin Friebe discovered that MySQL did not properly update the DEFINER value of an altered view. An authenticated user could use CREATE SQL SECURITY DEFINER VIEW and ALTER VIEW statements to gain privileges. Luigi Auriemma discovered that yaSSL as included in MySQL did not properly validate its input. A remote attacker could send crafted requests and cause a denial of service or possibly execute arbitrary code. This issue did not affect Ubuntu 6.06 in the default installation.
5a8255800f0f13ab0170873f78aa7381ffe3fa764291a6fe05ed17d87fae4f3fDebian Security Advisory 1478-1 - Luigi Auriemma discovered two buffer overflows in YaSSL, an SSL implementation included in the MySQL database package, which could lead to denial of service and possibly the execution of arbitrary code.
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