diff options
Diffstat (limited to 'meta/recipes-extended/libarchive/libarchive/CVE-2018-1000877.patch')
| -rw-r--r-- | meta/recipes-extended/libarchive/libarchive/CVE-2018-1000877.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/meta/recipes-extended/libarchive/libarchive/CVE-2018-1000877.patch b/meta/recipes-extended/libarchive/libarchive/CVE-2018-1000877.patch deleted file mode 100644 index ce638370bd..0000000000 --- a/meta/recipes-extended/libarchive/libarchive/CVE-2018-1000877.patch +++ /dev/null @@ -1,38 +0,0 @@ -CVE: CVE-2018-1000877 -Upstream-Status: Backport -Signed-off-by: Ross Burton <ross.burton@intel.com> - -From 021efa522ad729ff0f5806c4ce53e4a6cc1daa31 Mon Sep 17 00:00:00 2001 -From: Daniel Axtens <dja@axtens.net> -Date: Tue, 20 Nov 2018 17:56:29 +1100 -Subject: [PATCH] Avoid a double-free when a window size of 0 is specified - -new_size can be 0 with a malicious or corrupted RAR archive. - -realloc(area, 0) is equivalent to free(area), so the region would -be free()d here and the free()d again in the cleanup function. - -Found with a setup running AFL, afl-rb, and qsym. ---- - libarchive/archive_read_support_format_rar.c | 5 +++++ - 1 file changed, 5 insertions(+) - -diff --git a/libarchive/archive_read_support_format_rar.c b/libarchive/archive_read_support_format_rar.c -index 23452222..6f419c27 100644 ---- a/libarchive/archive_read_support_format_rar.c -+++ b/libarchive/archive_read_support_format_rar.c -@@ -2300,6 +2300,11 @@ parse_codes(struct archive_read *a) - new_size = DICTIONARY_MAX_SIZE; - else - new_size = rar_fls((unsigned int)rar->unp_size) << 1; -+ if (new_size == 0) { -+ archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT, -+ "Zero window size is invalid."); -+ return (ARCHIVE_FATAL); -+ } - new_window = realloc(rar->lzss.window, new_size); - if (new_window == NULL) { - archive_set_error(&a->archive, ENOMEM, --- -2.20.0 - |