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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2018.0058 Security vulnerabilities fixed in Firefox ESR 52.7 14 March 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Firefox Extended Support Release Operating System: Windows Linux variants Mac OS Android Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Increased Privileges -- Remote with User Interaction Denial of Service -- Remote with User Interaction Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-5145 CVE-2018-5144 CVE-2018-5131 CVE-2018-5130 CVE-2018-5129 CVE-2018-5127 CVE-2018-5125 Member content until: Friday, April 13 2018 OVERVIEW Security vulnerabilities have been fixed in Firefox ESR 52.7. [1] IMPACT Mozilla have provided the following information: " CVE-2018-5127: Buffer overflow manipulating SVG animatedPathSegList A buffer overflow can occur when manipulating the SVG animatedPathSegList through script. This results in a potentially exploitable crash. CVE-2018-5129: Out-of-bounds write with malformed IPC messages A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages. This can potentially allow for sandbox escape through memory corruption in the parent process. CVE-2018-5130: Mismatched RTP payload type can trigger memory corruption When packets with a mismatched RTP payload type are sent in WebRTC connections, in some circumstances a potentially exploitable crash is triggered. CVE-2018-5131: Fetch API improperly returns cached copies of no-store/no-cache resources Under certain circumstances the fetch() API can return transient local copies of resources that were sent with a no-store or no-cache cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing. CVE-2018-5144: Integer overflow during Unicode conversion An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parameter. CVE-2018-5125: Memory safety bugs fixed in Firefox 59 and Firefox ESR 52.7 Mozilla developers and community members Bob Clary, Olli Pettay, Christian Holler, Nils Ohlmeier, Randell Jesup, Tyson Smith, Ralph Giles, and Philipp reported memory safety bugs present in Firefox 58 and Firefox ESR 52.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. CVE-2018-5145: Memory safety bugs fixed in Firefox ESR 52.7 Mozilla developers Jet Villegas and Randell Jesup reported memory safety bugs present in Firefox ESR 52.6. These bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. " MITIGATION Mozilla recommends updating to Firefox ESR 52.7. [1] REFERENCES [1] Security vulnerabilities fixed in Firefox ESR 52.7 https://www.mozilla.org/en-US/security/advisories/mfsa2018-07/ AusCERT has made every effort to ensure that the information contained in this document is accurate. However, the decision to use the information described is the responsibility of each user or organisation. 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. =========================================================================== 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 iQIVAwUBWqh914x+lLeg9Ub1AQj4ww//fHVR5Itoq/VmZXaHY2Xdn2m9CmTp48qz EAWAuxeJFQdOvFVTkjc7BcnrGw4OzH3VKTfkVe+cyyftb56y2z2qT4dKfcRuixF6 ifylCug03t/ShDAA7Ca1dw/IcnBd8fp69gmRbTmxiP2M9YyeABBodh6OuQSunvus IziUowo8EGQdKa081I1QDskpks/hzdJVTpqyYn0w40TJ3smks+oyFjT/Fol55djw n0qTlWaWN39nGppNAoqZFviovaSNYrv0bkoOPLNXzkGBw2ncMBLQp9RnVRSPMWVE Clz0wBV92unZrLez5GYFP1KDXW+/+oJV/YqxXCrBNrw6EwjKsqK605NbW/YiZHeq pz629F09/Glz6RZcZeMainHXfIZMIPemDd/ccedmG9BwqT5ou6aX2KUx49TdhW9B Aeg1eZELWsmEkqOe+MHYRQbgrkso7wmqNS506E4LW9PKhYgHGzsK4ZTsBFeC4CcU ytSmUppjn+jjJ6b0APZaHwjKPh9FXg9czTm7yJ1kKR5bIJlMANTMoouWdJtsjKWR ZySMmoEdly1JFVvCXIDq4nc1MsKOJZv/TOSvaakkDRUpVLbBzqK8Wc8eXXlV1fiM 2TqptBSS3xIHfTvPiTjvDaYr/ew56nJzHAQ+W1G2uiuwSC9aGO5YA5O65ZrwyRVR 8KKhmwaueGg= =Fqkv -----END PGP SIGNATURE-----