-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.58 2004/12/29 10:16:52 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.60 2005/01/04 10:25:58 ph10 Exp $
Change log file for Exim from version 4.21
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to be a valid IP address. However, in the case of IPv6 addresses, it was
not checking this. This is a hostage to fortune. Exim now panics and dies
if the condition is not met. A case was found where this could be provoked
- from a dnsdb lookup; fortuitously, this particular loophole had already
- been fixed by change 4.50/55 above. If there are any other similar
- loopholes, the new check should stop them being exploited.
+ from a dnsdb PTR lookup with an IPv6 address that had more than 8
+ components; fortuitously, this particular loophole had already been fixed
+ by change 4.50/55 above.
+
+ If there are any other similar loopholes, the new check in host_aton()
+ itself should stop them being exploited. The report I received stated that
+ data on the command line could provoke the exploit when Exim was running as
+ exim, but did not say which command line option was involved. All I could
+ find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
+ running as the user.
+
+61. There was a buffer overflow vulnerability in the SPA authentication code
+ (which came originally from the Samba project). I have added a test to the
+ spa_base64_to_bits() function which I hope fixes it.
+
+62. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
+ os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
Exim version 4.43
projects / exim.git / blobdiff