mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-11-16 11:55:27 -05:00
28 lines
1.2 KiB
Diff
28 lines
1.2 KiB
Diff
|
From: sms
|
||
|
|
Subject: Fix CVE-2014-8140: out-of-bounds write issue in test_compr_eb()
|
||
|
|
Bug-Debian: http://bugs.debian.org/773722
|
||
|
|
|
||
|
|
--- a/extract.c
|
||
|
|
+++ b/extract.c
|
||
|
|
@@ -2234,10 +2234,17 @@
|
||
|
|
if (compr_offset < 4) /* field is not compressed: */
|
||
|
|
return PK_OK; /* do nothing and signal OK */
|
||
|
|
|
||
|
|
+ /* Return no/bad-data error status if any problem is found:
|
||
|
|
+ * 1. eb_size is too small to hold the uncompressed size
|
||
|
|
+ * (eb_ucsize). (Else extract eb_ucsize.)
|
||
|
|
+ * 2. eb_ucsize is zero (invalid). 2014-12-04 SMS.
|
||
|
|
+ * 3. eb_ucsize is positive, but eb_size is too small to hold
|
||
|
|
+ * the compressed data header.
|
||
|
|
+ */
|
||
|
|
if ((eb_size < (EB_UCSIZE_P + 4)) ||
|
||
|
|
- ((eb_ucsize = makelong(eb+(EB_HEADSIZE+EB_UCSIZE_P))) > 0L &&
|
||
|
|
- eb_size <= (compr_offset + EB_CMPRHEADLEN)))
|
||
|
|
- return IZ_EF_TRUNC; /* no compressed data! */
|
||
|
|
+ ((eb_ucsize = makelong( eb+ (EB_HEADSIZE+ EB_UCSIZE_P))) == 0L) ||
|
||
|
|
+ ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN))))
|
||
|
|
+ return IZ_EF_TRUNC; /* no/bad compressed data! */
|
||
|
|
|
||
|
|
if (
|
||
|
|
#ifdef INT_16BIT
|