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security fixes

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PHP supports multipart/form-data POST requests (as described in RFC1867)
known as POST fileuploads. Unfourtunately there are several flaws in the
php_mime_split function that could be used by an attacker to execute
arbitrary code.
- broken boundary check
- arbitrary heap overflow
--
Ok'd by: maintainer
This commit is contained in:
brad 2002-02-27 16:31:59 +00:00
parent 0c162d2650
commit 53bf90fee3
2 changed files with 29 additions and 4 deletions
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9
www/php3/Makefile
View File

@ -1,4 +1,4 @@
# $OpenBSD: Makefile,v 1.41 2001/11/19 01:38:58 brad Exp $
# $OpenBSD: Makefile,v 1.42 2002/02/27 16:31:59 brad Exp $
COMMENT= "server-side HTML-embedded scripting language"
@ -6,10 +6,11 @@ COMMENT= "server-side HTML-embedded scripting language"
# and has Apache that supports DSO's.
ONLY_FOR_ARCHS= i386 m68k sparc
DISTNAME= php-3.0.18
PKGNAME= php3-3.0.18
VERSION= 3.0.18
DISTNAME= php-${VERSION}
PKGNAME= php3-${VERSION}p2
CATEGORIES= www lang
NEED_VERSION= 1.489
NEED_VERSION= 1.500
HOMEPAGE= http://www.php.net/

24
www/php3/patches/patch-functions_mime_c Normal file
View File

@ -0,0 +1,24 @@
$OpenBSD: patch-functions_mime_c,v 1.1 2002/02/27 16:31:59 brad Exp $
--- functions/mime.c.orig Mon Oct 16 21:30:59 2000
+++ functions/mime.c Wed Feb 27 10:12:11 2002
@@ -85,7 +85,9 @@ void php3_mime_split(char *buf, int cnt,
SAFE_RETURN;
}
loc = memchr(ptr, '\n', rem);
+ rem -= loc - ptr;
name = strstr(ptr, " name=");
+ ptr = loc;
if (name && name < loc) {
name += 6;
s = memchr(name, '\"', loc - name);
@@ -138,6 +140,10 @@ void php3_mime_split(char *buf, int cnt,
sprintf(lbuf, "%s_name[]", abuf);
sbuf=estrdup(abuf);
} else {
+ if (abuf) {
+ efree(abuf);
+ abuf = NULL;
+ }
sprintf(lbuf, "%s_name", namebuf);
sbuf=estrdup(namebuf);
}