svn commit: r46937 - in head/share: security/advisories security/patches/SA-15:11 xml
Xin LI <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.cvs.doc |
|---|---|
| Message-ID | <[email protected]> |
Author: delphij
Date: Tue Jul 7 23:10:24 2015
New Revision: 46937
URL: https://svnweb.freebsd.org/changeset/doc/46937
Log:
Add SA-15:11.bind.
Added:
head/share/security/advisories/FreeBSD-SA-15:11.bind.asc (contents, props changed)
head/share/security/patches/SA-15:11/
head/share/security/patches/SA-15:11/bind-8.patch (contents, props changed)
head/share/security/patches/SA-15:11/bind-8.patch.asc (contents, props changed)
head/share/security/patches/SA-15:11/bind-9.patch (contents, props changed)
head/share/security/patches/SA-15:11/bind-9.patch.asc (contents, props changed)
Modified:
head/share/xml/advisories.xml
Added: head/share/security/advisories/FreeBSD-SA-15:11.bind.asc
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/security/advisories/FreeBSD-SA-15:11.bind.asc Tue Jul 7 23:10:24 2015 (r46937)
@@ -0,0 +1,137 @@
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA512
+
+=============================================================================
+FreeBSD-SA-15:11.bind Security Advisory
+ The FreeBSD Project
+
+Topic: BIND resolver remote denial of service when validating
+
+Category: contrib
+Module: bind
+Announced: 2015-07-07
+Credits: ISC
+Affects: FreeBSD 8.4 and FreeBSD 9.3.
+Corrected: 2015-07-07 21:43:23 UTC (stable/9, 9.3-STABLE)
+ 2015-07-07 21:44:01 UTC (releng/9.3, 9.3-RELEASE-p19)
+ 2015-07-07 21:43:23 UTC (stable/8, 8.4-STABLE)
+ 2015-07-07 21:44:01 UTC (releng/8.4, 8.4-RELEASE-p33)
+CVE Name: CVE-2015-4620
+
+For general information regarding FreeBSD Security Advisories,
+including descriptions of the fields above, security branches, and the
+following sections, please visit <URL:https://security.FreeBSD.org/>.
+
+I. Background
+
+BIND 9 is an implementation of the Domain Name System (DNS) protocol.
+The named(8) daemon is an Internet Domain Name Server. The libdns
+library is a library of DNS protocol support functions.
+
+II. Problem Description
+
+Due to a software defect, specially constructed zone data could cause
+named(8) to crash with an assertion failure and rejecting the malformed
+query when DNSSEC validation is enabled.
+
+III. Impact
+
+An attacker who can cause specific queries to be sent to a nameserver
+could cause named(8) to crash, resulting in a denial of service.
+
+IV. Workaround
+
+No workaround is available, but hosts not running named(8) are not
+vulnerable.
+
+V. Solution
+
+Perform one of the following:
+
+1) Upgrade your vulnerable system to a supported FreeBSD stable or
+release / security branch (releng) dated after the correction date.
+
+2) To update your vulnerable system via a binary patch:
+
+Systems running a RELEASE version of FreeBSD on the i386 or amd64
+platforms can be updated via the freebsd-update(8) utility:
+
+# freebsd-update fetch
+# freebsd-update install
+
+3) To update your vulnerable system via a source code patch:
+
+The following patches have been verified to apply to the applicable
+FreeBSD release branches.
+
+a) Download the relevant patch from the location below, and verify the
+detached PGP signature using your PGP utility.
+
+[FreeBSD 9.3]
+# fetch https://security.FreeBSD.org/patches/SA-15:11/bind-9.patch
+# fetch https://security.FreeBSD.org/patches/SA-15:11/bind-9.patch.asc
+# gpg --verify bind-9.patch.asc
+
+[FreeBSD 8.4]
+# fetch https://security.FreeBSD.org/patches/SA-15:11/bind-8.patch
+# fetch https://security.FreeBSD.org/patches/SA-15:11/bind-8.patch.asc
+# gpg --verify bind-8.patch.asc
+
+b) Apply the patch. Execute the following commands as root:
+
+# cd /usr/src
+# patch < /path/to/patch
+
+c) Recompile the operating system using buildworld and installworld as
+described in <URL:https://www.FreeBSD.org/handbook/makeworld.html>.
+
+Restart the applicable daemons, or reboot the system.
+
+VI. Correction details
+
+The following list contains the correction revision numbers for each
+affected branch.
+
+Branch/path Revision
+- -------------------------------------------------------------------------
+stable/8/ r285257
+releng/8.4/ r285258
+stable/9/ r285257
+releng/9.3/ r285258
+- -------------------------------------------------------------------------
+
+To see which files were modified by a particular revision, run the
+following command, replacing NNNNNN with the revision number, on a
+machine with Subversion installed:
+
+# svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base
+
+Or visit the following URL, replacing NNNNNN with the revision number:
+
+<URL:https://svnweb.freebsd.org/base?view=revision&revision=NNNNNN>
+
+VII. References
+
+<URL:https://kb.isc.org/article/AA-01267/>
+
+<URL:https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4620>
+
+The latest revision of this advisory is available at
+<URL:https://security.FreeBSD.org/advisories/FreeBSD-SA-15:11.bind.asc>
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v2.1.5 (FreeBSD)
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+=SVcF
+-----END PGP SIGNATURE-----
Added: head/share/security/patches/SA-15:11/bind-8.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/security/patches/SA-15:11/bind-8.patch Tue Jul 7 23:10:24 2015 (r46937)
@@ -0,0 +1,21 @@
+Index: contrib/bind9/lib/dns/validator.c
+===================================================================
+--- contrib/bind9/lib/dns/validator.c (revision 284940)
++++ contrib/bind9/lib/dns/validator.c (working copy)
+@@ -1406,7 +1406,6 @@ compute_keytag(dns_rdata_t *rdata, dns_rdata_dnske
+ */
+ static isc_boolean_t
+ isselfsigned(dns_validator_t *val) {
+- dns_fixedname_t fixed;
+ dns_rdataset_t *rdataset, *sigrdataset;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ dns_rdata_t sigrdata = DNS_RDATA_INIT;
+@@ -1461,7 +1460,7 @@ isselfsigned(dns_validator_t *val) {
+
+ result = dns_dnssec_verify2(name, rdataset, dstkey,
+ ISC_TRUE, mctx, &sigrdata,
+- dns_fixedname_name(&fixed));
++ NULL);
+ dst_key_free(&dstkey);
+ if (result != ISC_R_SUCCESS)
+ continue;
Added: head/share/security/patches/SA-15:11/bind-8.patch.asc
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/security/patches/SA-15:11/bind-8.patch.asc Tue Jul 7 23:10:24 2015 (r46937)
@@ -0,0 +1,17 @@
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v2.1.5 (FreeBSD)
+
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+=LZAe
+-----END PGP SIGNATURE-----
Added: head/share/security/patches/SA-15:11/bind-9.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/security/patches/SA-15:11/bind-9.patch Tue Jul 7 23:10:24 2015 (r46937)
@@ -0,0 +1,22 @@
+Index: contrib/bind9/lib/dns/validator.c
+===================================================================
+--- contrib/bind9/lib/dns/validator.c (revision 284940)
++++ contrib/bind9/lib/dns/validator.c (working copy)
+@@ -1420,7 +1420,6 @@ compute_keytag(dns_rdata_t *rdata, dns_rdata_dnske
+ */
+ static isc_boolean_t
+ isselfsigned(dns_validator_t *val) {
+- dns_fixedname_t fixed;
+ dns_rdataset_t *rdataset, *sigrdataset;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ dns_rdata_t sigrdata = DNS_RDATA_INIT;
+@@ -1476,8 +1475,7 @@ isselfsigned(dns_validator_t *val) {
+ result = dns_dnssec_verify3(name, rdataset, dstkey,
+ ISC_TRUE,
+ val->view->maxbits,
+- mctx, &sigrdata,
+- dns_fixedname_name(&fixed));
++ mctx, &sigrdata, NULL);
+ dst_key_free(&dstkey);
+ if (result != ISC_R_SUCCESS)
+ continue;
Added: head/share/security/patches/SA-15:11/bind-9.patch.asc
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/share/security/patches/SA-15:11/bind-9.patch.asc Tue Jul 7 23:10:24 2015 (r46937)
@@ -0,0 +1,17 @@
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v2.1.5 (FreeBSD)
+
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+=CSh0
+-----END PGP SIGNATURE-----
Modified: head/share/xml/advisories.xml
==============================================================================
--- head/share/xml/advisories.xml Tue Jul 7 22:02:37 2015 (r46936)
+++ head/share/xml/advisories.xml Tue Jul 7 23:10:24 2015 (r46937)
@@ -8,6 +8,18 @@
<name>2015</name>
<month>
+ <name>7</name>
+
+ <day>
+ <name>7</name>
+
+ <advisory>
+ <name>FreeBSD-SA-15:11.bind</name>
+ </advisory>
+ </day>
+ </month>
+
+ <month>
<name>6</name>
<day>
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