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markt pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git
The following commit(s) were added to refs/heads/9.0.x by this push:
new 08431bc Fix BZ 65433 - avoid StringIndexOutOfBoundsException for some
symlinks
08431bc is described below
commit 08431bc0b895aa80e78e993a006cabb73aaa6490
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Tue Jul 6 10:09:16 2021 +0100
Fix BZ 65433 - avoid StringIndexOutOfBoundsException for some symlinks
Regression in fix for BZ 65397
https://bz.apache.org/bugzilla/show_bug.cgi?id=65433
---
java/org/apache/catalina/webresources/DirResourceSet.java | 8 +++++---
webapps/docs/changelog.xml | 7 +++++++
2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/java/org/apache/catalina/webresources/DirResourceSet.java
b/java/org/apache/catalina/webresources/DirResourceSet.java
index 6bb0b25..eed886a 100644
--- a/java/org/apache/catalina/webresources/DirResourceSet.java
+++ b/java/org/apache/catalina/webresources/DirResourceSet.java
@@ -172,9 +172,11 @@ public class DirResourceSet extends
AbstractFileResourceSet {
// path that was contributed by 'f' and check
// that what is left does not contain a
symlink.
absPath =
entry.getAbsolutePath().substring(f.getAbsolutePath().length());
- canPath =
entry.getCanonicalPath().substring(f.getCanonicalPath().length());
- if (absPath.equals(canPath)) {
- symlink = false;
+ if (entry.getCanonicalPath().length() >=
f.getCanonicalPath().length()) {
+ canPath =
entry.getCanonicalPath().substring(f.getCanonicalPath().length());
+ if (absPath.equals(canPath)) {
+ symlink = false;
+ }
}
} catch (IOException ioe) {
// Ignore the exception. Assume we have a
symlink.
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index 6567735..8e28ef8 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -112,6 +112,13 @@
<code>NamingException</code> occurs to avoid connection locking.
Submitted by Ole Ostergaard. (remm)
</fix>
+ <fix>
+ <bug>65433</bug>: Correct a regression in the fix for <bug>65397</bug>
+ where a <code>StringIndexOutOfBoundsException</code> could be triggered
+ if the canonical path of the target of a symlink was shorter than the
+ canonical path of the directory in which the symlink had been created.
+ Patch provided by Cedomir Igaly. (markt)
+ </fix>
</changelog>
</subsection>
<subsection name="Coyote">
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