diff options
Diffstat (limited to 'main/libarchive/CVE-2015-2304.patch')
-rw-r--r-- | main/libarchive/CVE-2015-2304.patch | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/main/libarchive/CVE-2015-2304.patch b/main/libarchive/CVE-2015-2304.patch deleted file mode 100644 index cb7be5f18c..0000000000 --- a/main/libarchive/CVE-2015-2304.patch +++ /dev/null @@ -1,143 +0,0 @@ -From 59357157706d47c365b2227739e17daba3607526 Mon Sep 17 00:00:00 2001 -From: Alessandro Ghedini <alessandro@ghedini.me> -Date: Sun, 1 Mar 2015 12:07:45 +0100 -Subject: [PATCH] Add ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS option - -This fixes a directory traversal in the cpio tool. ---- - cpio/bsdcpio.1 | 3 ++- - cpio/cpio.c | 2 ++ - libarchive/archive.h | 2 ++ - libarchive/archive_write_disk.3 | 3 +++ - libarchive/archive_write_disk_posix.c | 14 +++++++++++--- - libarchive/test/test_write_disk_secure.c | 23 +++++++++++++++++++++++ - 6 files changed, 43 insertions(+), 4 deletions(-) - -diff --git a/cpio/bsdcpio.1 b/cpio/bsdcpio.1 -index f966aa0..e52546e 100644 ---- a/cpio/bsdcpio.1 -+++ b/cpio/bsdcpio.1 -@@ -156,7 +156,8 @@ See above for description. - .It Fl Fl insecure - (i and p mode only) - Disable security checks during extraction or copying. --This allows extraction via symbolic links and path names containing -+This allows extraction via symbolic links, absolute paths, -+and path names containing - .Sq .. - in the name. - .It Fl J , Fl Fl xz -diff --git a/cpio/cpio.c b/cpio/cpio.c -index 0acde11..b267e9b 100644 ---- a/cpio/cpio.c -+++ b/cpio/cpio.c -@@ -171,6 +171,7 @@ main(int argc, char *argv[]) - cpio->extract_flags |= ARCHIVE_EXTRACT_NO_OVERWRITE_NEWER; - cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_SYMLINKS; - cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_NODOTDOT; -+ cpio->extract_flags |= ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS; - cpio->extract_flags |= ARCHIVE_EXTRACT_PERM; - cpio->extract_flags |= ARCHIVE_EXTRACT_FFLAGS; - cpio->extract_flags |= ARCHIVE_EXTRACT_ACL; -@@ -256,6 +257,7 @@ main(int argc, char *argv[]) - case OPTION_INSECURE: - cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_SYMLINKS; - cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NODOTDOT; -+ cpio->extract_flags &= ~ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS; - break; - case 'L': /* GNU cpio */ - cpio->option_follow_links = 1; -diff --git a/libarchive/archive.h b/libarchive/archive.h -index 1f0fc38..ef635ac 100644 ---- a/libarchive/archive.h -+++ b/libarchive/archive.h -@@ -649,6 +649,8 @@ __LA_DECL int archive_read_set_passphrase_callback(struct archive *, - /* Default: Do not use HFS+ compression if it was not compressed. */ - /* This has no effect except on Mac OS v10.6 or later. */ - #define ARCHIVE_EXTRACT_HFS_COMPRESSION_FORCED (0x8000) -+/* Default: Do not reject entries with absolute paths */ -+#define ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS (0x10000) - - __LA_DECL int archive_read_extract(struct archive *, struct archive_entry *, - int flags); -diff --git a/libarchive/archive_write_disk.3 b/libarchive/archive_write_disk.3 -index fa925cc..a2e7afa 100644 ---- a/libarchive/archive_write_disk.3 -+++ b/libarchive/archive_write_disk.3 -@@ -177,6 +177,9 @@ The default is to not refuse such paths. - Note that paths ending in - .Pa .. - always cause an error, regardless of this flag. -+.It Cm ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS -+Refuse to extract an absolute path. -+The default is to not refuse such paths. - .It Cm ARCHIVE_EXTRACT_SPARSE - Scan data for blocks of NUL bytes and try to recreate them with holes. - This results in sparse files, independent of whether the archive format -diff --git a/libarchive/archive_write_disk_posix.c b/libarchive/archive_write_disk_posix.c -index ab3bdac..c1290eb 100644 ---- a/libarchive/archive_write_disk_posix.c -+++ b/libarchive/archive_write_disk_posix.c -@@ -2509,8 +2509,9 @@ cleanup_pathname_win(struct archive_write_disk *a) - /* - * Canonicalize the pathname. In particular, this strips duplicate - * '/' characters, '.' elements, and trailing '/'. It also raises an -- * error for an empty path, a trailing '..' or (if _SECURE_NODOTDOT is -- * set) any '..' in the path. -+ * error for an empty path, a trailing '..', (if _SECURE_NODOTDOT is -+ * set) any '..' in the path or (if ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS -+ * is set) if the path is absolute. - */ - static int - cleanup_pathname(struct archive_write_disk *a) -@@ -2529,8 +2530,15 @@ cleanup_pathname(struct archive_write_disk *a) - cleanup_pathname_win(a); - #endif - /* Skip leading '/'. */ -- if (*src == '/') -+ if (*src == '/') { -+ if (a->flags & ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS) { -+ archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, -+ "Path is absolute"); -+ return (ARCHIVE_FAILED); -+ } -+ - separator = *src++; -+ } - - /* Scan the pathname one element at a time. */ - for (;;) { -diff --git a/libarchive/test/test_write_disk_secure.c b/libarchive/test/test_write_disk_secure.c -index 31c5bfd..2c94206 100644 ---- a/libarchive/test/test_write_disk_secure.c -+++ b/libarchive/test/test_write_disk_secure.c -@@ -178,6 +178,29 @@ DEFINE_TEST(test_write_disk_secure) - assert(S_ISDIR(st.st_mode)); - archive_entry_free(ae); - -+ /* -+ * Without security checks, we should be able to -+ * extract an absolute path. -+ */ -+ assert((ae = archive_entry_new()) != NULL); -+ archive_entry_copy_pathname(ae, "/tmp/libarchive_test-test_write_disk_secure-absolute_path.tmp"); -+ archive_entry_set_mode(ae, S_IFREG | 0777); -+ assert(0 == archive_write_header(a, ae)); -+ assert(0 == archive_write_finish_entry(a)); -+ assertFileExists("/tmp/libarchive_test-test_write_disk_secure-absolute_path.tmp"); -+ assert(0 == unlink("/tmp/libarchive_test-test_write_disk_secure-absolute_path.tmp")); -+ -+ /* But with security checks enabled, this should fail. */ -+ assert(archive_entry_clear(ae) != NULL); -+ archive_entry_copy_pathname(ae, "/tmp/libarchive_test-test_write_disk_secure-absolute_path.tmp"); -+ archive_entry_set_mode(ae, S_IFREG | 0777); -+ archive_write_disk_set_options(a, ARCHIVE_EXTRACT_SECURE_NOABSOLUTEPATHS); -+ failure("Extracting an absolute path should fail here."); -+ assertEqualInt(ARCHIVE_FAILED, archive_write_header(a, ae)); -+ archive_entry_free(ae); -+ assert(0 == archive_write_finish_entry(a)); -+ assertFileNotExists("/tmp/libarchive_test-test_write_disk_secure-absolute_path.tmp"); -+ - assertEqualInt(ARCHIVE_OK, archive_write_free(a)); - - /* Test the entries on disk. */ |