Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0062 openssl security update 16 January 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openssl Publisher: Debian Operating System: Debian GNU/Linux 6 Debian GNU/Linux 5 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2011-4619 CVE-2011-4576 CVE-2011-4354 CVE-2011-4109 CVE-2011-4108 Reference: ESB-2012.0027 Original Bulletin: http://www.debian.org/security/2012/dsa-2390 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-2390-1 security@debian.org http://www.debian.org/security/ Florian Weimer January 15, 2012 http://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : openssl Vulnerability : several Problem type : remote Debian-specific: no CVE ID : CVE-2011-4108 CVE-2011-4109 CVE-2011-4354 CVE-2011-4576 CVE-2011-4619 Several vulnerabilities were discovered in OpenSSL, an implementation of TLS and related protocols. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities: CVE-2011-4108 The DTLS implementation performs a MAC check only if certain padding is valid, which makes it easier for remote attackers to recover plaintext via a padding oracle attack. CVE-2011-4109 A double free vulnerability when X509_V_FLAG_POLICY_CHECK is enabled, allows remote attackers to cause applications crashes and potentially allow execution of arbitrary code by triggering failure of a policy check. CVE-2011-4354 On 32-bit systems, the operations on NIST elliptic curves P-256 and P-384 are not correctly implemented, potentially leaking the private ECC key of a TLS server. (Regular RSA-based keys are not affected by this vulnerability.) CVE-2011-4576 The SSL 3.0 implementation does not properly initialize data structures for block cipher padding, which might allow remote attackers to obtain sensitive information by decrypting the padding data sent by an SSL peer. CVE-2011-4619 The Server Gated Cryptography (SGC) implementation in OpenSSL does not properly handle handshake restarts, unnecessarily simplifying CPU exhaustion attacks. For the oldstable distribution (lenny), these problems have been fixed in version 0.9.8g-15+lenny15. For the stable distribution (squeeze), these problems have been fixed in version 0.9.8o-4squeeze5. For the testing distribution (wheezy) and the unstable distribution (sid), these problems have been fixed in version 1.0.0f-1. We recommend that you upgrade your openssl packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iQEcBAEBAgAGBQJPEzckAAoJEL97/wQC1SS+I6QH/3m+WwIZkLVOuxIvLG4fH/6E FI7YeN7o0fC4bCtJp+k8QJIMUZ0oYIbGC15/zMgW04nnnDi4zfn+c7sSb4Ja1bbo yF5i8Zl0JAzkjvGp4JnSYEnRZb/ctRYanWrI+O1FuR9GNI+DPhGoOxSU2ksI0niO HPZjyN1oRyGU6+4/Z2AaPoslDqeZvRyL1mLPsm/zgyY3I6WwKFeVd7xgUMNdE5Dw rCBNxtPEN1E/ftmkE05u0mjGGGJZlEZadYL4K1JLdQN2dYYPM1Amqmj4YE7ipy1D YyTcb/BWRPMeC5H/0ZSbyd+304pIcAZJaIGdd+pFIu1o/CdMCC1ZRI88e21KuEQ= =gWrz - -----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 iQIVAwUBTxNw4u4yVqjM2NGpAQIhNw//WGWe6hppp7C1n7A9IOlwgWbU3yvk8oQx AlrpZr9ZNpVsVqMBaORzgfeRfI+2R1yekVJBy1pRM48H4VS8ABilmXg0KlcVrhc5 ftg8tIPtqUn9U//3RZT20cr0Gb/a1RPgogDkVAF9uhliZd02ed60ucRgOl15p8XP SUu5/H+8uxx5qNdfXvwhgzWjPO2wICjtiYdRbf3G0qNx8msSv6FLT+a1/BbFxajP ZPvPT/104/KDdUhqDgSUerZguKSbw+igyTZD7rofopxpC+/4mvYGUyJOs9SH7WYr ldULRQ1WT72EEO7H5Vuqx4i1A7JdcBArPUH8V+p9/r/zh+BY3ktcOAhL8HQxEgQ9 xvYIfUUXlYZFCJ6WqWNIwIdrOJkoq1O2m7xOlLkdpsnBYaUMTk0OCXlFTVVVJcrD 4KiY1NFI5S8naVSZonEBz1B6RNIes27DpHGFEUm+td6djvD9CwmXQFqY3Ts27/xC ckBs2x0UKZPGofy8wU6RFNuxMQ0wpvu0glX1fc3rVl1GH4N+VnxbOybseN/5ryKk rjRnapmWhMxiyON3ipWrNWL1NyDX/k0TTEnzASmGTUxLNbXhi9on5NNMoIzEfxlV CKZbCDB2ISMo2TdHDDWR5zgmD6yVHrAhUjcStJcXN4sTUhNvGvc0P6it8ah1WkxE HK5rob7NvGQ= =Px4q -----END PGP SIGNATURE-----