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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1838 gdb vulnerabilities 27 July 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: gdb Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2016-6131 CVE-2016-4493 CVE-2016-4492 CVE-2016-4491 CVE-2016-4490 CVE-2016-4489 CVE-2016-4488 CVE-2016-4487 CVE-2016-2226 CVE-2014-9939 CVE-2014-8501 Reference: ESB-2017.1563 ESB-2015.2865.2 ESB-2015.0054.2 Original Bulletin: http://www.ubuntu.com/usn/usn-3367-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3367-1 July 26, 2017 gdb vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.04 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in gdb. Software Description: - - gdb: GNU Debugger Details: Hanno Böck discovered that gdb incorrectly handled certain malformed AOUT headers in PE executables. If a user or automated system were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause gdb to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS. (CVE-2014-8501) It was discovered that gdb incorrectly handled printing bad bytes in Intel Hex objects. If a user or automated system were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause gdb to crash, resulting in a denial of service. This issue only applied to Ubuntu 14.04 LTS. (CVE-2014-9939) It was discovered that gdb incorrectly handled certain string operations. If a user or automated system were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause gdb to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-2226) It was discovered that gdb incorrectly handled parsing certain binaries. If a user or automated system were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause gdb to crash, resulting in a denial of service. This issue only applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-4487, CVE-2016-4488, CVE-2016-4489, CVE-2016-4490, CVE-2016-4492, CVE-2016-4493, CVE-2016-6131) It was discovered that gdb incorrectly handled parsing certain binaries. If a user or automated system were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause gdb to crash, resulting in a denial of service. (CVE-2016-4491) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: gdb 7.12.50.20170314-0ubuntu1.1 Ubuntu 16.04 LTS: gdb 7.11.1-0ubuntu1~16.5 Ubuntu 14.04 LTS: gdb 7.7.1-0ubuntu5~14.04.3 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3367-1 CVE-2014-8501, CVE-2014-9939, CVE-2016-2226, CVE-2016-4487, CVE-2016-4488, CVE-2016-4489, CVE-2016-4490, CVE-2016-4491, CVE-2016-4492, CVE-2016-4493, CVE-2016-6131 Package Information: https://launchpad.net/ubuntu/+source/gdb/7.12.50.20170314-0ubuntu1.1 https://launchpad.net/ubuntu/+source/gdb/7.11.1-0ubuntu1~16.5 https://launchpad.net/ubuntu/+source/gdb/7.7.1-0ubuntu5~14.04.3 - --------------------------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 iQIVAwUBWXlEr4x+lLeg9Ub1AQhwHQ//RL6K0TNu43aV/OhZ4wmMbeGFFZ5TLjrz tdE7UX+KOFAXchuk8y1kyE09Ha3E0QYEyIBeNeRc5QyczAOgXKxDzcaVJpjSsNUp dQKzAPbYnjOfpnA9M5hTsRl1qlmSshixQhRuJNVzvJSGDXhNYwkeaIx65IRqVoJv gZSJPD5DrmfhfIFBbKHp6AdmoRa+/q0eodXkoDVjbvHhJt7Jd0EqgyAxp8Gk6317 DMehb3bbx4TJfIUEBsg92wEzyEeHcG++BwdPFcoTwTjpYFedDKgzOaiy9zX/I/x/ 39Adw7/CJXud9oErcQ/7TP3qFr6BffGZDARcjsmFLLxBCc4uXJ5gyPbzpiF/h5am ttix1KIfytnKOT7pKG/OaC4OKZk7EXUKK3o9RirAmwoO2FftvF3vuF/RFNTQRtcf o49l430CnlrFOZ/It9RxnqxRmOPCtBuFoc2fZaQ9aZJlUpwBaZjSxzIx4cGwWmoH eUDDm1LsZ28IW2ca9GvH3OPJe7SG/4H4GRcXtpSMenVK/b4RtWZqOuCuC+RjUzRQ MmGAnJ50oYKdg/T+PvZkoJxsn3vnBObH9J/WNp7ylox1YX1syi50nS1y4+FBAt8K eZsalzI+oJxz2j0cvlWO2s9GOKKBv2wahxCRt9F0BianLF47yuUMqlSs7Gcdy8LX pvPxglzufRg= =H/QO -----END PGP SIGNATURE-----