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-rw-r--r--meta/recipes-connectivity/bind/bind/bind-CVE-2012-3817.patch40
1 files changed, 40 insertions, 0 deletions
diff --git a/meta/recipes-connectivity/bind/bind/bind-CVE-2012-3817.patch b/meta/recipes-connectivity/bind/bind/bind-CVE-2012-3817.patch
new file mode 100644
index 0000000..1e159bd
--- /dev/null
+++ b/meta/recipes-connectivity/bind/bind/bind-CVE-2012-3817.patch
@@ -0,0 +1,40 @@
1bind: fix for CVE-2012-3817
2
3Upstream-Status: Backport
4
5ISC BIND 9.4.x, 9.5.x, 9.6.x, and 9.7.x before 9.7.6-P2; 9.8.x before 9.8.3-P2;
69.9.x before 9.9.1-P2; and 9.6-ESV before 9.6-ESV-R7-P2, when DNSSEC validation
7is enabled, does not properly initialize the failing-query cache, which allows
8remote attackers to cause a denial of service (assertion failure and daemon exit)
9by sending many queries.
10
11http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-3817
12
13This patch is back-ported from bind-9.3.6-20.P1.el5_8.2.src.rpm package.
14
15Signed-off-by: Ming Liu <ming.liu@windriver.com>
16---
17 resolver.c | 5 +++--
18 1 file changed, 3 insertions(+), 2 deletions(-)
19
20--- a/lib/dns/resolver.c
21+++ b/lib/dns/resolver.c
22@@ -8318,6 +8318,7 @@ dns_resolver_addbadcache(dns_resolver_t
23 goto cleanup;
24 bad->type = type;
25 bad->hashval = hashval;
26+ bad->expire = *expire;
27 isc_buffer_init(&buffer, bad + 1, name->length);
28 dns_name_init(&bad->name, NULL);
29 dns_name_copy(name, &bad->name, &buffer);
30@@ -8329,8 +8330,8 @@ dns_resolver_addbadcache(dns_resolver_t
31 if (resolver->badcount < resolver->badhash * 2 &&
32 resolver->badhash > DNS_BADCACHE_SIZE)
33 resizehash(resolver, &now, ISC_FALSE);
34- }
35- bad->expire = *expire;
36+ } else
37+ bad->expire = *expire;
38 cleanup:
39 UNLOCK(&resolver->lock);
40 }