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Date: Mon, 08 Dec 2008 15:53:46 +0100
From: Jan Lieskovsky <jlieskov@...hat.com>
To: coley@...re.org
Cc: oss-security <oss-security@...ts.openwall.com>
Subject: CVE Request - rsyslog
Hello Steve,
the following vulnerability has been recently reported
in rsyslog:
http://www.rsyslog.com/Article322.phtml
References:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508027
http://secunia.com/Advisories/32857/
Upstream patch:
http://git.adiscon.com/?p=rsyslog.git;a=commitdiff;h=f0ddbed44c332391ae6d9bbf6b07e2f06c4dd676
The reporter mentions:
"The versions affected are rsyslog 3.12.1 to 3.20.0, 4.1.0 and 4.1.1.
The v2-stable branch is not affected."
Although the v2-stable part is missing the plugins/imgssapi,imtcp,imudp
part of the patch, the affected 'clearAllowedSenders' function can be
found in syslogd.c
740 static void clearAllowedSenders (struct AllowedSenders *pAllow) {
and 'isAllowedSender' function from syslogd.c also lacks the check added
by the patch:
1049 /* check if a sender is allowed. The root of the the allowed sender.
1050 * list must be proveded by the caller. As such, this function can be
1051 * used to check both UDP and TCP allowed sender lists.
1052 * returns 1, if the sender is allowed, 0 otherwise.
1053 * rgerhards, 2005-09-26
1054 */
1055 int isAllowedSender(struct AllowedSenders *pAllowRoot, struct sockaddr *pFrom, const char *pszFromHost)
1056 {
1057 struct AllowedSenders *pAllow;
1058
1059 assert(pFrom != NULL);
1060 <- no "if(setAllowRoot(&pAllowRoot, pszType) != RS_RET_OK)" from the patch
1061 if(pAllowRoot == NULL)
1062 return 1; /* checking disabled, everything is valid! */
so it is highly probable, rsyslog-2.0 is also affected by this issue (checking with the developers yet).
Could you please allocate a new CVE id for this issue?
Thanks, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team
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