+++ This bug was initially created as a clone of Bug #166330 +++ PCRE 6.2 was released recently which included a fix for a heap buffer overflow. PCRE is used by things such as Apache but only for configuration (therefore making an exploit low severity). A number of packages also include PCRE code internally, I'll be adding separate bugs for those that contain PCRE and do not use system PCRE later. Changelog states: 1. There was no test for integer overflow of quantifier values. A construction such as {1111111111111111} would give undefined results. What is worse, if a minimum quantifier for a parenthesized subpattern overflowed and became negative, the calculation of the memory size went wrong. This could have led to memory overwriting. A minimal diff of the flaw is attached, the full 6.2 to 6.1 diff contains other fixes that might be worth incorporating and a test for this flaw. See cloned bug for patch and more details. ** this may have no security context for exim depending on how pcre is used, this needs further investigation **
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2005-358.html