Your message dated Fri, 30 May 2008 15:29:02 +0100
with message-id <[EMAIL PROTECTED]>
and subject line smail has been removed from Debian, closing #335042
has caused the Debian Bug report #335042,
regarding insecure signal handling
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [EMAIL PROTECTED]
immediately.)
--
335042: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=335042
Debian Bug Tracking System
Contact [EMAIL PROTECTED] with problems
--- Begin Message ---
Package: smail
Severity: grave
Tags: security patch
Justification: user security hole
[Dear security-team, this should affect Woody as well]
Sean <[EMAIL PROTECTED] has discovered two vulnerabilities in smail,
that can be exploited to obtain root privileges:
1. A heap overflow in RFC 821 header parsing permits remote attackers that
are able to connect to an SMTP server remote code execution with root
privileges.
2. Insecure signal handling may be exploitable to obtain extended privileges
for local users as well.
For full details see
http://www.securityfocus.com/archive/1/394286/2005-03-22/2005-03-28/0
It contains a fix for the heap overflow, which I attach to this report.
Cheers,
Moritz
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.11
Locale: LANG=C, [EMAIL PROTECTED] (charmap=ISO-8859-15)
--- addr.c 2004-08-27 01:46:17.000000000 -0500
+++ _addr.c 2005-03-25 01:00:44.423372480 -0500
@@ -217,10 +217,12 @@
ap++;
if (*ap == '@') {
/* matched host!(host!)[EMAIL PROTECTED] -- build the !-route */
- register char *p = xmalloc((size_t) strlen(address));
+ size_t alen = strlen(address);
+ register char *p = xmalloc((size_t) alen + 1);
DEBUG(DBG_ADDR_MID, "found host!(host!)[EMAIL PROTECTED] form--ugh!\n");
/* first part already !-route */
strncpy(p, address, (size_t) (ap - address));
+ p[(ap - address)] = '\0';
if (mark_end) {
*mark_end++ = '>'; /* widden the original address */
}
@@ -231,7 +233,8 @@
*error);
return NULL;
}
- strcat(p, ap); /* concatenate together */
+ strncat(p, ap, alen-strlen(p)); /* concatenate together */
+ p[alen] = '\0'; /* in case in wasn't NULL'd */
xfree(ap);
DEBUG1(DBG_ADDR_HI, "preparse_address returns: %v\n", p);
*rest = mark_end;
--- End Message ---
--- Begin Message ---
Version: 3.2.0.115-7.1+rm
The smail package has been removed from Debian testing, unstable and
experimental, so I am now closing the bugs that were still opened
against it.
For more information about this package's removal, read
http://bugs.debian.org/474068 . That bug might give the reasons why
this package was removed, and suggestions of possible replacements.
Don't hesitate to reply to this mail if you have any question.
Thank you for your contribution to Debian.
--
Marco Rodrigues
http://Marco.Tondela.org
--- End Message ---
