[Bug 1399580] New: CVE-2016-1251 perl-DBD-MySQL: Use after free when using prepared statements

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1399580

            Bug ID: 1399580
           Summary: CVE-2016-1251 perl-DBD-MySQL: Use after free when
                    using prepared statements
           Product: Security Response
         Component: vulnerability
          Keywords: Security
          Severity: medium
          Priority: medium
          Assignee: security-response-team(a)redhat.com
          Reporter: amaris(a)redhat.com
                CC: hhorak(a)redhat.com, jorton(a)redhat.com,
                    jplesnik(a)redhat.com,
                    perl-devel(a)lists.fedoraproject.org,
                    perl-maint-list(a)redhat.com, ppisar(a)redhat.com,
                    psabata(a)redhat.com



A use after free vulnerability when using prepared statements was found in
DBD::mysql. Function dbd_st_fetch() via Renew() can reallocate output buffer
for mysql_stmt_fetch() call, but it does not update pointer to that buffer in
imp_sth->stmt structure initialized by mysql_stmt_bind_result() function, which
leads to use after free in any mysql function which access imp_sth->stmt
structure.

This vulnerability is present in all releases at least back to versions 3.0 of
the driver, which were released in 2005.

Upstream patch:

https://github.com/perl5-dbi/DBD-mysql/commit/3619c170461a3107a258d1fd2d0...

References:

http://seclists.org/oss-sec/2016/q4/536

-- 
You are receiving this mail because:
You are on the CC list for the bug.