f952f726e1
> 8.13.6/8.13.6 2006/03/22 > SECURITY: Replace unsafe use of setjmp(3)/longjmp(3) in the server > and client side of sendmail with timeouts in the libsm I/O > layer and fix problems in that code. Also fix handling of > a buffer in sm_syslog() which could have been used as an > attack vector to exploit the unsafe handling of > setjmp(3)/longjmp(3) in combination with signals. > Problem detected by Mark Dowd of ISS X-Force. > Handle theoretical integer overflows that could triggered if > the server accepted headers larger than the maximum > (signed) integer value. This is prevented in the default > configuration by restricting the size of a header, and on > most machines memory allocations would fail before reaching > those values. Problems found by Phil Brass of ISS. > If a server returns 421 for an RSET command when trying to start > another transaction in a session while sending mail, do > not trigger an internal consistency check. Problem found > by Allan E Johannesen of Worcester Polytechnic Institute. > If a server returns a 5xy error code (other than 501) in response > to a STARTTLS command despite the fact that it advertised > STARTTLS and that the code is not valid according to RFC > 2487 treat it nevertheless as a permanent failure instead > of a protocol error (which has been changed to a > temporary error in 8.13.5). Problem reported by Jeff > A. Earickson of Colby College. > Clear SMTP state after a HELO/EHLO command. Patch from John > Myers of Proofpoint. > Observe MinQueueAge option when gathering entries from the queue > for sorting etc instead of waiting until the entries are > processed. Patch from Brian Fundakowski Feldman. > Set up TLS session cache to properly handle clients that try to > resume a stored TLS session. > Properly count the number of (direct) child processes such that > a configured value (MaxDaemonChildren) is not exceeded. > Based on patch from Attila Bruncsak. > LIBMILTER: Remove superfluous backslash in macro definition > (libmilter.h). Based on patch from Mike Kupfer of > Sun Microsystems. > LIBMILTER: Don't try to set SO_REUSEADDR on UNIX domain sockets. > This generates an error message from libmilter on > Solaris, though other systems appear to just discard the > request silently. > LIBMILTER: Deal with sigwait(2) implementations that return > -1 and set errno instead of returning an error code > directly. Patch from Chris Adams of HiWAAY Informations > Services. > Portability: > Fix compilation checks for closefrom(3) and statvfs(2) > in NetBSD. Problem noted by S. Moonesamy, patch from > Andrew Brown. |
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