Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3261 dovecot security update 29 August 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: dovecot Publisher: Debian Operating System: Debian GNU/Linux 9 Debian GNU/Linux 10 Linux variants Impact/Access: Denial of Service -- Existing Account Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-11500 Original Bulletin: http://www.debian.org/security/2019/dsa-4510 Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running dovecot 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-4510-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso August 28, 2019 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : dovecot CVE ID : CVE-2019-11500 Nick Roessler and Rafi Rubin discovered that the IMAP and ManageSieve protocol parsers in the Dovecot email server do not properly validate input (both pre- and post-login). A remote attacker can take advantage of this flaw to trigger out of bounds heap memory writes, leading to information leaks or potentially the execution of arbitrary code. For the oldstable distribution (stretch), this problem has been fixed in version 1:2.2.27-3+deb9u5. For the stable distribution (buster), this problem has been fixed in version 1:2.3.4.1-5+deb10u1. We recommend that you upgrade your dovecot packages. For the detailed security status of dovecot please refer to its security tracker page at: https://security-tracker.debian.org/tracker/dovecot 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----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAl1mb8hfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0TKsxAAk63zTXm80+KBP2rCeRNtkVmAKXd6yFSbexwFFNJGQAjp11OJJTtCPtVa D8wQnq6XeTSqNoKH7gHamB6B5nKnPrADGo3H7Zi9yLdmdY4i4c68A6FtLmh/wTBk 6hIpWmQ/xQV2BfdEcEXO+n7OqXGJq1x41uB/HITRlVXUlU3+4mP5F0366QA5P5MW XQhFltv6cgCZuoFC9T+fQkiSGC54NYZiuyfNyF1MSeClxrLe7/nB8nlfPwFe+Y4N xfAnuKrYk3cz5Pt55zz3GwaRLeVjbgxdIDzlFrhO52w5VERtdjQR0gg5hgeify9s eY4s6BOAKl3WHPmT1tVqnsuVwOx/eAFu23AQpG+QHzTRMb1/z6/zoLa2JHCkppsc BltptGA8GpiKLCYMA8cxjS1qe0CPdtOWVLE+Lxn55UlL6ABQMq/aj01v2BhYVDHF H2hNfzFItdRVUmwQpHXyEbfdwQGauG+quZwqgeBCASs641oTyKVAD/O3Rc8Ju0fM NOU784xJs5JmrSzmzSNMEIcAVLgBLspGlz8rA0JvjJ5mKJ9uODedoGFFFAyCme8Y 3kghzMYV4CLjnBR3kWfukRauwn4jdo+E4l/GiCf4D39/RJmtL86Xw1tqwuROTFB6 OBpJuvPTVCwd3TNj4Z2cGN3agjN4P4FfKRqaSDcFj2C8zI9LXhw= =R+Xq - -----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: https://www.auscert.org.au/bulletins/ =========================================================================== 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 iQIVAwUBXWciQmaOgq3Tt24GAQii3w//WfGkVKTIQPkk5jzphY2Q5bTktXDcwfts hGUp0mDsSEFh31P++FSPJ2fdrixuTIuTpLSzqeNfn6PoxSQlSkkGfbLnxqhlsiqQ 37Tw2Ux+GDEhx+Rj4xAwdRh3FyBl4aBWOQVTwKJ1a6qwpTZwrkYB72JZKukZBufu krwivK15i58rJgF/p7RvMSe7pWoMBb3ctvfGlpt2OSeKECzUsbOmMtBsYeiKqkJP uwk/n/W2kdO5tO/0RIJcarFLz23m2TpcE4Q7e58p/taAV9LWnDD5CTDaP9cA3Enl pX7ekBBPKD2JVoOd5ngWz8uClxLuXVviDmzExbmTkYv903voWuWAfZfFvy7z2NR2 4VJKg1imY778SPX2jWlhO3LOwZ/2WDexRQphZSmo7y3CCNtw65PtAhAmwG9dra6X wx37kGX7J5Zh2UEgZ++Io/Xe1wWY2Lxdzlz/8MH5Bdmm9ueBh62+/sd2BZgr7b/s IqynADfxHO5v9n4eTj7yi67E+Op7RRP5imEFIpY5Nq/StY765oq9Nl5r1f+efjnI R5t3PsA1DeyPqwnT68JSEOvaLohhtojfktx28C8ObikkKO2CWEX6x8BYBVGGhQ2N JBU/nDjTP6whP7tZZocRIlr82o30OI6g1o8AJk2WxrE15juThmff5rOtjdxjD60P yv7Qvqe113o= =B2Pd -----END PGP SIGNATURE-----