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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.1352 krb5 security update 11 August 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: krb5 Publisher: Debian Operating System: Debian GNU/Linux 7 Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-4345 CVE-2014-4344 CVE-2014-4343 CVE-2014-4342 CVE-2014-4341 Original Bulletin: http://www.debian.org/security/2014/dsa-3000 Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running krb5 check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-3000-1 security@debian.org http://www.debian.org/security/ Salvatore Bonaccorso August 09, 2014 http://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : krb5 CVE ID : CVE-2014-4341 CVE-2014-4342 CVE-2014-4343 CVE-2014-4344 CVE-2014-4345 Debian Bug : 753624 753625 755520 755521 757416 Several vulnerabilities were discovered in krb5, the MIT implementation of Kerberos. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2014-4341 An unauthenticated remote attacker with the ability to inject packets into a legitimately established GSSAPI application session can cause a program crash due to invalid memory references when attempting to read beyond the end of a buffer. CVE-2014-4342 An unauthenticated remote attacker with the ability to inject packets into a legitimately established GSSAPI application session can cause a program crash due to invalid memory references when reading beyond the end of a buffer or by causing a null pointer dereference. CVE-2014-4343 An unauthenticated remote attacker with the ability to spoof packets appearing to be from a GSSAPI acceptor can cause a double-free condition in GSSAPI initiators (clients) which are using the SPNEGO mechanism, by returning a different underlying mechanism than was proposed by the initiator. A remote attacker could exploit this flaw to cause an application crash or potentially execute arbitrary code. CVE-2014-4344 An unauthenticated or partially authenticated remote attacker can cause a NULL dereference and application crash during a SPNEGO negotiation by sending an empty token as the second or later context token from initiator to acceptor. CVE-2014-4345 When kadmind is configured to use LDAP for the KDC database, an authenticated remote attacker can cause it to perform an out-of-bounds write (buffer overflow). For the stable distribution (wheezy), these problems have been fixed in version 1.10.1+dfsg-5+deb7u2. For the unstable distribution (sid), these problems have been fixed in version 1.12.1+dfsg-7. We recommend that you upgrade your krb5 packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJT5jYCAAoJEAVMuPMTQ89EdoEP/jEAoCdu8F/p6zMFcUFKKoiM RjTaE6gjms8VWTp0weZcWApBWCXW3CFNQiErq9nd8borkPrWSDPTDug3h1Fc4/82 7Lw7xkCK90SJaSgdxB0QAj9mMIOd/2aR7YqL4nYo/1MC8snrwNrv+s9BKuk8Yypc /9+cbjWt+zBiaUXCNN1H6ZyX3P/exV0Rx75hfvwr49WiiLflLB10qMlx1CKICrj7 ay1pK3k+uXFNYr+NfNjNjN4wxOQEJZPig93CeRtvnlMlU2fDeb2udvaJTqIODbqA fY1rzEATJWnB3VMMGqIq21VDdPLizxA3GrPIQuFrDwwFRAViUQKdThpw2pBwpudH RoKhoc2EqdxCgt9IsadupioUt68fPQQlVpY81983wIpvshR/lVWeP4r2ZUNOQcxX Ql15VVmVG3eTo02Dy9WcIL9qH/urccFC8rF/9nwsJmrs0yZHXMEzLg9IjzisUd9i deHpPMGVXe5THBGZWvI3ch18BStrdqlgWGJXQE29PWpPBNU1bhSY5IsF3SDy82O9 ZaSHhWFZ2rXKe3W8OQlFC+dd0AS/NQG3ES/JZwSf3c2CX/SswB+xR18xxy5zgb75 XgX85A5LjOyEmCl98b+wVC7zAEE3sNzKnHjMjD/LCC4CuMO+hlIPEaMhD3dYWg6Y t5P2bMi/2wp4MyJKVYuY =gD9n - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBU+gm+BLndAQH1ShLAQJp3Q/9GdzHKfIx9i5Kx1WdPNmRsNkR07+JY177 wmI40uNC6sPeiZYZcDPFfLQblY39LUZyAxXGqXYISu+zs0CiAcAS9BpmfPjbMNBL KLLcwEAwtyE3by0GCkU8WVbVbgw8eSzkwjl6KYAoxtNYKxJxq0j7dAEOiuVVp/aU oY04prm8tzzXQyZkjKq7xtvtMnfVkpCeyEvZRqxEVsbu7+VNUz9ct194W7vfVVW7 2os8wYEdKlOXhRg4b9Dm/LPT/NuP8YjjCyVtBBet+525G2FahONh2P++LGzTtBrX MCfrBg5j/THlP/L97bQTZMoQLMmNq4uBAFMVDYTTnEPY7k5irRADcPw9XcQgFwwz 2VXOuCU4R9WnvEpdPLBnWJeQv9NNGwhTcmnq0b3U9kV/S02qMuYeBqmUs5qCx2tm AhxufC/ryDWcCEKfzUHi8mTpAysYkoY/i9XLM7h328bZV/se/ZwvNVR/Wg+HhWMA lwAheD/6GOPv3QDaFJBNChff+ZtpudBTIXPdo+z1VY5a1fjhdG8xMCeDb9XMBMEC 48BszSAj62JfVM8lAPHyrEYNGGRBCDmkLIi6XdA2jQvrjzm4o+TxmIWfk/w07Mtt bJuCyPvn6hmelLzaxVS5fV8H1xVDaAOwtctwAcFqs86q3tMPKLKWcHjgGWkND83W K9v+BUoRiQY= =KScz -----END PGP SIGNATURE-----