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. Ensure that when files are extracted that their fully resolved path lies

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in or below the current working directory.  Fixes a security problem with
  jar(1).

  This fix may change to be compatible with whatever fix Sun applies when
  they release the next version of 1.5.
. Bump PORTREVISION for this fix.

Security: http://vuxml.FreeBSD.org/18e5428f-ae7c-11d9-837d-000e0c2e438a.html
This commit is contained in:
Greg Lewis 2005-05-02 18:55:36 +00:00
parent c57702320f
commit 8805fa551a
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=134505
3 changed files with 72 additions and 1 deletions
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2
java/jdk12/Makefile
View File

@ -7,7 +7,7 @@
PORTNAME= jdk
PORTVERSION= ${JDK_VERSION}p${JDK_PATCHSET_VERSION}
PORTREVISION= 3
PORTREVISION= 4
CATEGORIES= java devel
MASTER_SITES= # http://www.sun.com/software/java2/download.html
# http://www.eyesbeyond.com/freebsddom/java/jdk.html

58
java/jdk12/files/patch-src-jar-Main.java Normal file
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@ -0,0 +1,58 @@
$FreeBSD$
--- ../../src/share/classes/sun/tools/jar/Main.java 4 Aug 1999 21:07:59 -0000 1.1.1.2
+++ ../../src/share/classes/sun/tools/jar/Main.java 1 May 2005 04:57:29 -0000
@@ -37,6 +37,7 @@
Hashtable filesTable = new Hashtable();
Vector paths = new Vector();
Vector v;
+ String cwd;
CRC32 crc32 = new CRC32();
/* cflag: create
* uflag: update
@@ -632,6 +633,19 @@
* Extracts specified entries from JAR file.
*/
void extract(InputStream in, String files[]) throws IOException {
+ // Current working directory
+
+ cwd = System.getProperty("user.dir");
+ if (cwd == null) {
+ fatalError(getMsg("error.no.cwd"));
+ }
+ cwd = (new File(cwd)).getCanonicalPath();
+ if (!cwd.endsWith(File.separator)) {
+ cwd += File.separator;
+ }
+
+ // Extract the files
+
ZipInputStream zis = new ZipInputStream(in);
ZipEntry e;
while ((e = zis.getNextEntry()) != null) {
@@ -656,6 +670,10 @@
void extractFile(ZipInputStream zis, ZipEntry e) throws IOException {
String name = e.getName();
File f = new File(e.getName().replace('/', File.separatorChar));
+ if (!f.getCanonicalPath().startsWith(cwd)) {
+ output(formatMsg("out.ignore.entry", name));
+ return;
+ }
if (e.isDirectory()) {
if (!f.exists() && !f.mkdirs() || !f.isDirectory()) {
throw new IOException(formatMsg("error.create.dir", f.getPath()));
@@ -666,6 +684,10 @@
} else {
if (f.getParent() != null) {
File d = new File(f.getParent());
+ if (!d.getCanonicalPath().startsWith(cwd)) {
+ output(formatMsg("out.ignore.entry", name));
+ return;
+ }
if (!d.exists() && !d.mkdirs() || !d.isDirectory()) {
throw new IOException(formatMsg("error.create.dir", d.getPath()));
}
Index: src/share/classes/sun/tools/jar/resources/jar.properties
===================================================================
RCS file: /var/jcvs/javasrc/src/share/classes/sun/tools/jar/resources/jar.properties,v
retrieving revision 1.1.1.1

13
java/jdk12/files/patch-src-resources-jar.properties Normal file
View File

@ -0,0 +1,13 @@
$FreeBSD$
--- ../../src/share/classes/sun/tools/jar/resources/jar.properties 4 Aug 1999 21:07:59 -0000 1.1.1.1
+++ ../../src/share/classes/sun/tools/jar/resources/jar.properties 1 May 2005 04:57:38 -0000
@@ -30,6 +30,8 @@
{0} : could not create directory
error.incorrect.length=\
incorrect length while processing: {0}
+error.no.cwd=\
+ {0} : could not determine current working directory
out.added.manifest=\
added manifest
out.update.manifest=\