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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3479.3 SpamAssassin vulnerabilities 6 December 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: SpamAssassin Publisher: Ubuntu Operating System: Ubuntu Linux variants Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-11781 CVE-2018-11780 CVE-2017-15705 Reference: ESB-2018.3097 Original Bulletin: http://www.ubuntu.com/usn/usn-3811-1 http://www.ubuntu.com/usn/usn-3811-2 http://www.ubuntu.com/usn/usn-3811-3 Comment: This bulletin contains three (3) Ubuntu security advisories. This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running SpamAssassin check for an updated version of the software for their operating system. Revision History: December 6 2018: Added USN-3811-3 November 14 2018: Added USN-3811-2 for Ubuntu 12.04 ESM. November 7 2018: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3811-1 November 06, 2018 spamassassin vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 18.04 LTS - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in SpamAssassin. Software Description: - - spamassassin: Perl-based spam filter using text analysis Details: It was discovered that SpamAssassin incorrectly handled certain unclosed tags in emails. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2017-15705) It was discovered that SpamAssassin incorrectly handled the PDFInfo plugin. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11780) It was discovered that SpamAssassin incorrectly handled meta rule syntax. A local attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11781) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: spamassassin 3.4.2-0ubuntu0.18.04.1 Ubuntu 16.04 LTS: spamassassin 3.4.2-0ubuntu0.16.04.1 Ubuntu 14.04 LTS: spamassassin 3.4.2-0ubuntu0.14.04.1 This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3811-1 CVE-2017-15705, CVE-2018-11780, CVE-2018-11781 Package Information: https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.16.04.1 https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.14.04.1 - -------------------------------------------------------------------------------- ========================================================================== Ubuntu Security Notice USN-3811-2 November 13, 2018 spamassassin vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 12.04 ESM Summary: SpamAssassin could be made to crash if it received a specially crafted file. Software Description: - - spamassassin: Perl-based spam filter using text analysis Details: USN-3811-1 fixed a vulnerability in SpamAssassin. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that SpamAssassin incorrectly handled certain unclosed tags in emails. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2017-15705) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: spamassassin 3.3.2-2ubuntu1.2 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3811-2 https://usn.ubuntu.com/usn/usn-3811-1 CVE-2017-15705 - -------------------------------------------------------------------------------- ========================================================================== Ubuntu Security Notice USN-3811-3 December 05, 2018 spamassassin vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 12.04 ESM Summary: Several security issues were fixed in SpamAssassin. Software Description: - - spamassassin: Perl-based spam filter using text analysis Details: USN-3811-1 fixed a vulnerability in spamassassin. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that SpamAssassin incorrectly handled the PDFInfo plugin. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11780) It was discovered that SpamAssassin incorrectly handled meta rule syntax. A local attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11781) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: spamassassin 3.4.2-0ubuntu0.12.04.2 This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3811-3 https://usn.ubuntu.com/usn/usn-3811-1 CVE-2018-11780, CVE-2018-11781 - --------------------------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 iQIVAwUBXAhouWaOgq3Tt24GAQj8ehAAkb8HwnLHEj7pNJEHJvi5efFPyzisDkak 4+RawGim/m/vn1NcM1FrU/IYiFUlZKifhuRxJsJXrZ313Mn4xuK1VAE1kAHWvlFH BOrBlEoxHQ+fI7TPHLkyOCJUgSzrQD5yJvCmMOSNXTFf/PD8kzOYecXqMzGakkS/ +JUn6HkOPIcNvxR4GIqq+/nO23Z81ugEX6oDEfg2jPn9T77XBp9qxpT7oECB8QvM 1Sq6PV1iaj3GXGYNwCRetD/z72L9U4qtrQ0p0c4vSy9H1m5Xvftg9YO5PlYoMrIH /c+ia0OgnZk5Db7WIh5/tIP+Q+Mtxtv6XuBxFnwm6PJ5O7X9t+o+s7rqXC4S1uXY CIBGGIwjIXb8hqb/Ik+4jqIJkXwQ9IaGDveU9EVoaR589eypnWHDKmP1eqOMcQPe sjDZYaF6kOcx0ONE4DIEAxl1dG0+YHUsOl1Rfci/TBjWpHv4em6eCFJn0Z05yglM iLGQxD1yK83zHLJM1pKK3cpQrIT1LRRkD7l752lyBeMhgZLyY0YNKe/xycv6pPEr J8LSFq1FhNZGB7IPvYxUL6W73zq3Hpgn65Tql6AKIO0tEOI3Uf+uro9XrQHPf6v2 +oHvbiOHA9+mnpicu9oTEPuQ79CfOZbsqPdTqpL7t5Av0DhQmjNUQq1Bs1Cqg/0Y dMzmNl5Bn44= =/9TQ -----END PGP SIGNATURE-----