Mangelnde Eingabeprüfung in PowerDNS
ID: | 200804-22:03 |
Distribution: | Gentoo |
Plattformen: | Keine Angabe |
Datum: | Do, 21. August 2008, 17:48 |
Referenzen: | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1637
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3217 |
Applikationen: | PowerDNS Authoritative Server |
Originalnachricht |
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--nextPart4670234.B5yiR9yx1j Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline =2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory [UPDATE] GLSA 200804-22:03 =2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ =2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: PowerDNS Recursor: DNS Cache Poisoning Date: April 18, 2008 Updated: August 21, 2008 Bugs: #215567, #231335 ID: 200804-22:03 =2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Update ====== The previous version of the PowerDNS Recursor (3.1.5) did not properly address the issue, as UDP source port selection was insufficiently randomized. We advise all users to upgrade to 3.1.6. The updated sections appear below. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/pdns-recursor < 3.1.6 >=3D 3.1.6 Description =========== Amit Klein of Trusteer reported that insufficient randomness is used to calculate the TRXID values and the UDP source port numbers (CVE-2008-1637). Thomas Biege of SUSE pointed out that a prior fix to resolve this issue was incomplete, as it did not always enable the stronger random number generator for source port selection (CVE-2008-3217). Impact ====== A remote attacker could send malicious answers to insert arbitrary DNS data into the cache. These attacks would in turn help an attacker to perform man-in-the-middle and site impersonation attacks. Resolution ========== All PowerDNS Recursor users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=3Dnet-dns/pdns-recursor-3.1.6" References ========== [ 1 ] CVE-2008-1637 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-1637 [ 2 ] CVE-2008-3217 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-3217 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200804-22.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5 --nextPart4670234.B5yiR9yx1j Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iQIcBAABAgAGBQJIrYwQAAoJECaaHo/OfoM5bxEP/AlZejSYUGQ3nOXoxNmFJVZi CIOwkIDJE5BcEDLZ3xdmCPv4NgFeEPVsBcjinT2Wc1CPr799PoqSV7bXzG6LChle CTOvcTPprrvPKv2Ayg609/lPvI94mRSGb8DbCKnutnHA7usqgd0RPObsASJYyiuG Jyq5ZKjwGqD0GqV8mzoc6cDkhrtRnrsXx4ZVGjqp41fBiYQtFM/CR59ZVnY3RL2M l21xoOontq8GOsjtrfMWc2cVJK+wSM/cEaE9ujY4kYloMu5u3vGmRxy7I49U5aqA +FkzYlsPL5sWtBbCFU7i3EqUhmtz5YIjHtxtIpMVCpYd9ggyjDM1R+XbqY3XoEvM ZRO9kF9AcKB7tNHfp3lAbnKWcQFaK+/PDrR9oVTtBajl923+9u+Pn8ML7jiTVVPI DgslbWZYSvjK6W6uDrtrYlrE2UHK2I7DnMRgnvLUtH9anggRNPqX4Yincv13wTpW oy+B4DrsArf/8cFJr4cTnKysqxX2MnhD9UIrvfh4J1ZU43jhDCL+lSqbPqiEA02j oeeoPPvrfILanZt1sf4d8qS+VLOkEh9dHeuarW6qxk0zSIXRSfiO6kwaAvBk6F+s g4iJ3a3zFH+y3jk6NHTXtHjeB49bTo/VONO+LtfaMwZ/UP/Gsirqyyt18ZG23ZcL MFKz4Pt2YlFlTFrsdQO3 =wuzE -----END PGP SIGNATURE----- --nextPart4670234.B5yiR9yx1j-- |