1b7d5242c3
* gnu/packages/patches/libarchive-CVE-2013-0211.patch, gnu/packages/patches/libarchive-fix-lzo-test-case.patch, gnu/packages/patches/libarchive-mtree-filename-length-fix.patch: New files. * gnu-system.am (dist_patch_DATA): Add them. * gnu/packages/backup.scm (libarchive)[source]: Add patches.
21 lines
756 B
Diff
21 lines
756 B
Diff
Description: Fix CVE-2013-0211: read buffer overflow on 64-bit systems
|
|
Origin: upstream
|
|
Bug-Debian: http://bugs.debian.org/703957
|
|
Forwarded: not-needed
|
|
|
|
--- libarchive-3.0.4.orig/libarchive/archive_write.c
|
|
+++ libarchive-3.0.4/libarchive/archive_write.c
|
|
@@ -665,8 +665,13 @@ static ssize_t
|
|
_archive_write_data(struct archive *_a, const void *buff, size_t s)
|
|
{
|
|
struct archive_write *a = (struct archive_write *)_a;
|
|
+ const size_t max_write = INT_MAX;
|
|
+
|
|
archive_check_magic(&a->archive, ARCHIVE_WRITE_MAGIC,
|
|
ARCHIVE_STATE_DATA, "archive_write_data");
|
|
+ /* In particular, this catches attempts to pass negative values. */
|
|
+ if (s > max_write)
|
|
+ s = max_write;
|
|
archive_clear_error(&a->archive);
|
|
return ((a->format_write_data)(a, buff, s));
|
|
}
|