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authorRemi Collet <remi@remirepo.net>2020-08-04 08:34:50 +0200
committerRemi Collet <remi@remirepo.net>2020-08-04 08:34:50 +0200
commite54a5af5d27b5455ff2c895a37a047f7e8409f5d (patch)
tree67d466c5492763df56a2b2f93e7234c679995e47 /php-bug79797.patch
parent9a65af96cce8d688c8be1996d18a1e8096a3d2d0 (diff)
Core:
Fix #79877 getimagesize function silently truncates after a null byte Phar: Fix #79797 use of freed hash key in the phar_parse_zipfile function CVE-2020-7068
Diffstat (limited to 'php-bug79797.patch')
-rw-r--r--php-bug79797.patch52
1 files changed, 52 insertions, 0 deletions
diff --git a/php-bug79797.patch b/php-bug79797.patch
new file mode 100644
index 0000000..c386b13
--- /dev/null
+++ b/php-bug79797.patch
@@ -0,0 +1,52 @@
+Partial, without binary part
+
+
+
+From bd3395d35b2bbed0f6716c33cff217b00eddc2eb Mon Sep 17 00:00:00 2001
+From: "Christoph M. Becker" <cmbecker69@gmx.de>
+Date: Tue, 14 Jul 2020 17:04:24 +0200
+Subject: [PATCH] Fix #79797: Use of freed hash key in the phar_parse_zipfile
+ function
+
+We must not use heap memory after we freed it.
+
+(cherry picked from commit 7355ab81763a3d6a04ac11660e6a16d58838d187)
+---
+ NEWS | 6 ++++++
+ ext/phar/tests/bug79797.phar | Bin 0 -> 274 bytes
+ ext/phar/tests/bug79797.phpt | 14 ++++++++++++++
+ ext/phar/zip.c | 2 +-
+ 4 files changed, 21 insertions(+), 1 deletion(-)
+ create mode 100644 ext/phar/tests/bug79797.phar
+ create mode 100644 ext/phar/tests/bug79797.phpt
+
+diff --git a/NEWS b/NEWS
+index e153539d98..2655a1747f 100644
+--- a/NEWS
++++ b/NEWS
+@@ -1,6 +1,12 @@
+ PHP NEWS
+ |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
+
++Backported from 7.2.33
++
++- Phar:
++ . Fixed bug #79797 (Use of freed hash key in the phar_parse_zipfile
++ function). (CVE-2020-7068) (cmb)
++
+ Backported from 7.2.31
+
+ - Core:
+diff --git a/ext/phar/zip.c b/ext/phar/zip.c
+index 1c05fbd80f..f9b43a5487 100644
+--- a/ext/phar/zip.c
++++ b/ext/phar/zip.c
+@@ -704,7 +704,7 @@ int phar_parse_zipfile(php_stream *fp, char *fname, int fname_len, char *alias,
+ efree(actual_alias);
+ }
+
+- zend_hash_str_add_ptr(&(PHAR_G(phar_alias_map)), actual_alias, mydata->alias_len, mydata);
++ zend_hash_str_add_ptr(&(PHAR_G(phar_alias_map)), mydata->alias, mydata->alias_len, mydata);
+ } else {
+ phar_archive_data *fd_ptr;
+