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bind: Security fix CVE-2015-8461

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CVE-2015-8461 bind: race condition when handling socket errors can lead to an assertion failure in resolver.c\

(From OE-Core master rev: 1656eaa722952861ec73362776bd0c4826aec3da)

Hand applied Changelog changes.

(From OE-Core rev: 104d050d420ee4aa14b772850742699b15d127d6)

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Armin Kuster 2016-01-30 19:29:32 -08:00 committed by Richard Purdie
parent d4b6c1657b
commit 12cdd6d2b3
2 changed files with 47 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
meta/recipes-connectivity/bind/bind/CVE-2015-8461.patch Normal file
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@ -0,0 +1,45 @@
From adbf81335b67be0cebdcf9f1f4fcb38ef4814f4d Mon Sep 17 00:00:00 2001
From: Mark Andrews <marka@isc.org>
Date: Thu, 25 Jun 2015 18:36:27 +1000
Subject: [PATCH] 4146. [bug] Address reference leak that could
prevent a clean shutdown. [RT #37125]
Upstream-Status: Backport
https://source.isc.org/cgi-bin/gitweb.cgi?p=bind9.git;a=commit;h=adbf81335b67be0cebdcf9f1f4fcb38ef4814f4d
CVE: CVE-2015-8461
Signed-off-by: Armin Kuster <akuster@mvista.com>
---
CHANGES | 3 +++
lib/dns/resolver.c | 5 +++++
2 files changed, 8 insertions(+)
Index: bind-9.9.5/lib/dns/resolver.c
===================================================================
--- bind-9.9.5.orig/lib/dns/resolver.c
+++ bind-9.9.5/lib/dns/resolver.c
@@ -1570,6 +1570,11 @@ fctx_query(fetchctx_t *fctx, dns_adbaddr
if (query->dispatch != NULL)
dns_dispatch_detach(&query->dispatch);
+ LOCK(&res->buckets[fctx->bucketnum].lock);
+ INSIST(fctx->references > 1);
+ fctx->references--;
+ UNLOCK(&res->buckets[fctx->bucketnum].lock);
+
cleanup_query:
if (query->connects == 0) {
query->magic = 0;
Index: bind-9.9.5/CHANGES
===================================================================
--- bind-9.9.5.orig/CHANGES
+++ bind-9.9.5/CHANGES
@@ -1,4 +1,7 @@
--- 9.9.6-P2 released ---
+4146. [bug] Address reference leak that could prevent a clean
+ shutdown. [RT #37125]
+
4053. [security] Revoking a managed trust anchor and supplying
an untrusted replacement could cause named

3
meta/recipes-connectivity/bind/bind_9.9.5.bb
View File

@ -27,7 +27,8 @@ SRC_URI = "ftp://ftp.isc.org/isc/bind9/${PV}/${BPN}-${PV}.tar.gz \
file://CVE-2015-5722.patch \
file://CVE-2015-8000.patch \
file://CVE-2015-8704.patch \
"
file://CVE-2015-8461.patch \
"
SRC_URI[md5sum] = "e676c65cad5234617ee22f48e328c24e"
SRC_URI[sha256sum] = "d4b64c1dde442145a316679acff2df4008aa117ae52dfa3a6bc69efecc7840d1"