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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1077 openssl security update 4 May 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openssl Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-2176 CVE-2016-2109 CVE-2016-2108 CVE-2016-2107 CVE-2016-2106 CVE-2016-2105 Reference: ESB-2016.1076 Original Bulletin: http://www.debian.org/security/2016/dsa-3566 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-3566-1 security@debian.org https://www.debian.org/security/ Alessandro Ghedini May 03, 2016 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : openssl CVE ID : CVE-2016-2105 CVE-2016-2106 CVE-2016-2107 CVE-2016-2108 CVE-2016-2109 CVE-2016-2176 Several vulnerabilities were discovered in OpenSSL, a Secure Socket Layer toolkit. CVE-2016-2105 Guido Vranken discovered that an overflow can occur in the function EVP_EncodeUpdate(), used for Base64 encoding, if an attacker can supply a large amount of data. This could lead to a heap corruption. CVE-2016-2106 Guido Vranken discovered that an overflow can occur in the function EVP_EncryptUpdate() if an attacker can supply a large amount of data. This could lead to a heap corruption. CVE-2016-2107 Juraj Somorovsky discovered a padding oracle in the AES CBC cipher implementation based on the AES-NI instruction set. This could allow an attacker to decrypt TLS traffic encrypted with one of the cipher suites based on AES CBC. CVE-2016-2108 David Benjamin from Google discovered that two separate bugs in the ASN.1 encoder, related to handling of negative zero integer values and large universal tags, could lead to an out-of-bounds write. CVE-2016-2109 Brian Carpenter discovered that when ASN.1 data is read from a BIO using functions such as d2i_CMS_bio(), a short invalid encoding can casuse allocation of large amounts of memory potentially consuming excessive resources or exhausting memory. CVE-2016-2176 Guido Vranken discovered that ASN.1 Strings that are over 1024 bytes can cause an overread in applications using the X509_NAME_oneline() function on EBCDIC systems. This could result in arbitrary stack data being returned in the buffer. Additional information about these issues can be found in the OpenSSL security advisory at https://www.openssl.org/news/secadv/20160503.txt For the stable distribution (jessie), these problems have been fixed in version 1.0.1k-3+deb8u5. For the unstable distribution (sid), these problems have been fixed in version 1.0.2h-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: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCgAGBQJXKOzVAAoJEK+lG9bN5XPL/Y8P/1SFWBMNT4WSM5TvGzXhG5ls v/Yag/M502v3W9sO6wTIK3qqWw90QZTiGXRNLm9YajSDVby4X2g2wREVRxStdBqh j31TBARkBuabf7Yr2JKIKxT+N76GXFLiOuXmW8yxD++pobOR2bUwyERaoIEY0k9Y +/Ht0gj1VyszyqWylS9zEBxAGw8V37u7ViYUFyrzzDaXWESpWZyiypylMpS2PJwX jjSrKhv04gz+7aKEvzUvYeFqPOJxiJ7GnH4G+tFUgq8Sa2acnZzOVMn36peNZvxR h/CPD4TwwZYzCCZTlZhhfK7s/vXwguHXTCgKz9bfLT35hpdDyohzFH/4kRkORkEi QbI14MtwosCAcPovZ/SfRmxfT4iUDsDGoVxZz/J8WBUUMkhDfjzmyUYyDP/H7roY OYHVXzkhPbq8Q4M6Sv45iq5mNNp5TVh708SnSE8e8Ib+5yzUGzQ/gpnFM1lQd+he /8DSP90FJKYXnUiqonzK8yVPgaXpD5xXww9mKK4iu8pdquFmCZZ6yaAGSQdVADy7 +vNw5JSqcxio8SHdNba64jdeqMx/n1DWPRlwLbWMUQA9aImtGjugN0vs01uLGS1Z UsKwv0ziOtWCbLZIhIkCKmMitI60VDROcvWZXRRnLR6ye387o++UauRaryda5Ofj LZIhY96GwaUF0MsN7AVw =1EU2 - -----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). 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