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CVE-2009-4028

Publication date 30 November 2009

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The vio_verify_callback function in viosslfactories.c in MySQL 5.0.x before 5.0.88 and 5.1.x before 5.1.41, when OpenSSL is used, accepts a value of zero for the depth of X.509 certificates, which allows man-in-the-middle attackers to spoof arbitrary SSL-based MySQL servers via a crafted certificate, as demonstrated by a certificate presented by a server linked against the yaSSL library.

Read the notes from the security team

Status

Package Ubuntu Release Status
mysql-dfsg 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Ignored
mysql-dfsg-4.1 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Ignored
mysql-dfsg-5.0 9.10 karmic
Not affected
9.04 jaunty
Not affected
8.10 intrepid
Not affected
8.04 LTS hardy
Not affected
6.06 LTS dapper
Not affected
mysql-dfsg-5.1 9.10 karmic
Not affected
9.04 jaunty
Not affected
8.10 intrepid Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release

Notes

mdeslaur

dapper doesn't build with ssl hardy+ builds with yaSSL none of our releases are vulnerable, as the yaSSL code ignores the verify callback (see mysql bug)

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
mysql-dfsg-4.1