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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1994 libgcrypt20 security update 18 August 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libgcrypt20 Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Reduced Security -- Unknown/Unspecified Resolution: Patch/Upgrade CVE Names: CVE-2016-6313 Reference: ESB-2016.1993 Original Bulletin: http://www.debian.org/security/2016/dsa-3650 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-3650-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso August 17, 2016 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : libgcrypt20 CVE ID : CVE-2016-6313 Felix Doerre and Vladimir Klebanov from the Karlsruhe Institute of Technology discovered a flaw in the mixing functions of Libgcrypt's random number generator. An attacker who obtains 4640 bits from the RNG can trivially predict the next 160 bits of output. A first analysis on the impact of this bug for GnuPG shows that existing RSA keys are not weakened. For DSA and Elgamal keys it is also unlikely that the private key can be predicted from other public information. For the stable distribution (jessie), this problem has been fixed in version 1.6.3-2+deb8u2. We recommend that you upgrade your libgcrypt20 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----- iQIcBAEBCgAGBQJXtNXvAAoJEAVMuPMTQ89EiDoP/Rg9lOLivQypYqq+kXT5wH5H vxbwZtLt0AhGv5bhKyXAHt7nY8knGIN098JDjL8Ngc+XIdhXgrCr9ntVTvNLQdne i8OxmRFB/x4kGFuuwdvE3+rFuPkYNtURTunfkYI/3OUhEXKf1pUvFUFR9xrbr5lD WRL+ZgWFnonql8ash1cMprpE8333uXZv5xxo4ngO06S/DlQjrpF2JqaqF7QwxBFP ZWPtMqvU7bHb2ldxZy4AfPM+92GZAm59111D31E1tMVeERltjzvKUFGWPaAHa+0J cpNCGbPr/QzUtUzwh3g2I62N0pgdngoMFrtcJZvimK7J/oF2E+/PdgGFWStUFlo9 oLlahn7NnYU726R6cLC4jgSHQ4qGFwWKh+Mgjfq8FOLK89WRwGIMG2UCYs+vpEgp VFE7FhckQ+A2asYXNf6AKCyPauZRy3F7VOi1zle0c68p4tL1/QlZFzEejxk2nLOb UGh94oGK9XGsRxAIR/Zx3/YxoknDEUrFIK0/mykCO7AJlw6g0uceVUtABTyohOjE IsxyGYXVfE3BkCp2SFWB2+cmSLiXdZoIaEFj8WNpS9670dX0o9j61ivxAwawvsFL sxCMBId9FuLgR/bgK12sx8d1OdhEdH0MXinHJT+ubWTMlgfcSj6qmyA7O+ZnuYlN lJXCRS1HOpkQuD09I56q =xxBt - -----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 iQIVAwUBV7VKG4x+lLeg9Ub1AQiA1g/+OUb/kE+Sc5M1Y6yaqXGhJx+IUg27eRPG XiZlkqJE4iq17iik3FfpdhR6MI7ow5voUXB5L745xLsSdRlGmr9CRIuucWHD7Dnn RmlL0Qb+hFUoXx7wBCYBRZ6tBBCn/veOGcYcU+cs29QGNbiYKgD1/gb5wDnksMWS adoyU/IGoQ62cxmNrN1DjbSwTD69Tx69Ay9qQ9A/DRN+fxyWPuG6lfXthC+EQ4wy sTGehPpvzmgAO/ck+vAmbRQ0UGo207hvmyZ7ANpWxlnZMJ/4AYwtQ6uBOMcyHmHK uL1autIEcRnoztp40xe0Q9eOAY0saaIPeRNGGMlA21LrRS3pG7H6IRjfFvs/FT+v j9vhwanXRDJE+J4lptY5McjpFdQ216qOYeCiVXzmVVyoMZmokFZg3JDvsHaIbUy8 6vd8QOAdP2D3+5QvtnuHEfTtRdo9w2Grwz2iSrCmUZ8aIIugmG5WCQunUhoWYjGV I04sJhglEEqj6Ro4K2H06F2JFaSjxmyvbf67qcGmTgWGxG5Bfc8adk24ybMORQo3 8JkZySdqR/nvypwmNpzR87c6BWGMljtFHU0AKusbtbnVxtHkzBcGRRa+cl3kZMb6 WYv4z+cArYhhg1a8zceEvLIa5aDsCj6oxVKiXjYdN2VlFAef5VY/qwgXhlpZD377 6MZdj6XSrsE= =Zeeg -----END PGP SIGNATURE-----