diff options
Diffstat (limited to 'php-bug79797.patch')
| -rw-r--r-- | php-bug79797.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/php-bug79797.patch b/php-bug79797.patch new file mode 100644 index 0000000..f29d1cf --- /dev/null +++ b/php-bug79797.patch @@ -0,0 +1,52 @@ +Partial, without binary part + + + +From d7980cd5ef5862d9a01a0f34ee44bec07be88096 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 b53c9e28cb..501283aabe 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 ed156a2d00..3ab02ab35a 100644 +--- a/ext/phar/zip.c ++++ b/ext/phar/zip.c +@@ -682,7 +682,7 @@ int phar_parse_zipfile(php_stream *fp, char *fname, int fname_len, char *alias, + efree(actual_alias); + } + +- zend_hash_add(&(PHAR_GLOBALS->phar_alias_map), actual_alias, mydata->alias_len, (void*)&mydata, sizeof(phar_archive_data*), NULL); ++ zend_hash_add(&(PHAR_GLOBALS->phar_alias_map), mydata->alias, mydata->alias_len, (void*)&mydata, sizeof(phar_archive_data*), NULL); + } else { + phar_archive_data **fd_ptr; + |