There's a stack-based off-by-one in Claws Mail's HTML parsing. NOTE: I've not investigated this properly and currently have no plans to do so. Depending on our stack layout and whether or not stack corruption mitigation is in place, this could be anything from no issue at all to possible code execution. My guess is that this is not really an issue for us, but then again it looks suspicious enough to get this fixed. It looks like this got introduced with 3.10.0 and was fixed in 3.10.1. F20 ships 3.10.0, for F19 3.10.0 is only in updates-testing. References: http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=3201 http://git.claws-mail.org/?p=claws.git;a=commitdiff;h=5f52f113ac9fd054f10752febbfac340c38cddbe
Created claws-mail tracking bugs for this issue: Affects: fedora-all [bug 1110255]
Thanks for providing the patch!
Ups wrong bug...