0010-Fix-CVE-2014-8140-out-of-bounds-write-issue-in-test_.patch (1528B)
- From a8ce86155076505d0d6e3d8a3e44c26bb89d9524 Mon Sep 17 00:00:00 2001
- From: "Steven M. Schweda" <sms@antinode.info>
- Date: Sat, 15 Jun 2019 18:13:11 -0700
- Subject: [PATCH] Fix CVE-2014-8140: out-of-bounds write issue in
- test_compr_eb()
- ---
- extract.c | 13 ++++++++++---
- 1 file changed, 10 insertions(+), 3 deletions(-)
- diff --git a/extract.c b/extract.c
- index df0fa1c..ec31e60 100644
- --- a/extract.c
- +++ b/extract.c
- @@ -2232,10 +2232,17 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
- 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
- --
- 2.20.1