package/bzip2: add upstream security fix for CVE-2019-12900
Patch to resolve cve-2019-12900 which affects bzip2 versions 1.0.6 and older More information can be found at https://nvd.nist.gov/vuln/detail/CVE-2019-12900 Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
parent
abc782c0b3
commit
6581c441df
|
@ -0,0 +1,33 @@
|
|||
From 74de1e2e6ffc9d51ef9824db71a8ffee5962cdbc Mon Sep 17 00:00:00 2001
|
||||
From: Albert Astals Cid <aacid@kde.org>
|
||||
Date: Tue, 28 May 2019 19:35:18 +0200
|
||||
Subject: [PATCH] Make sure nSelectors is not out of range
|
||||
|
||||
nSelectors is used in a loop from 0 to nSelectors to access selectorMtf
|
||||
which is
|
||||
UChar selectorMtf[BZ_MAX_SELECTORS];
|
||||
so if nSelectors is bigger than BZ_MAX_SELECTORS it'll do an invalid memory
|
||||
access
|
||||
|
||||
Fixes out of bounds access discovered while fuzzying karchive
|
||||
|
||||
Signed-off-by: Albert Astals Cid <aacid@kde.org>
|
||||
---
|
||||
decompress.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/decompress.c b/decompress.c
|
||||
index ab6a624..f3db91d 100644
|
||||
--- a/decompress.c
|
||||
+++ b/decompress.c
|
||||
@@ -287,7 +287,7 @@ Int32 BZ2_decompress ( DState* s )
|
||||
GET_BITS(BZ_X_SELECTOR_1, nGroups, 3);
|
||||
if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR);
|
||||
GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15);
|
||||
- if (nSelectors < 1) RETURN(BZ_DATA_ERROR);
|
||||
+ if (nSelectors < 1 || nSelectors > BZ_MAX_SELECTORS) RETURN(BZ_DATA_ERROR);
|
||||
for (i = 0; i < nSelectors; i++) {
|
||||
j = 0;
|
||||
while (True) {
|
||||
--
|
||||
2.21.0
|
Loading…
Reference in a new issue