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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3890 [DLA 1608-1] php5 security update 17 December 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: php5 Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-19935 CVE-2018-19518 Reference: ESB-2018.3830 ESB-2018.3801 Original Bulletin: https://lists.debian.org/debian-lts-announce/2018/12/msg00006.html - --------------------------BEGIN INCLUDED TEXT-------------------- Package : php5 Version : 5.6.39+dfsg-0+deb8u1 CVE ID : CVE-2018-19518 CVE-2018-19935 Vulnerabilities have been discovered in php5, a server-side, HTML-embedded scripting language. Note that this update includes a change to the default behavior for IMAP connections. See below for details. CVE-2018-19518 An argument injection vulnerability in imap_open() may allow a remote attacker to execute arbitrary OS commands on the IMAP server. The fix for the CVE-2018-19518 vulnerability included this additional note from the upstream developers: Starting with 5.6.38, rsh/ssh logins are disabled by default. Use imap.enable_insecure_rsh if you want to enable them. Note that the IMAP library does not filter mailbox names before passing them to rsh/ssh command, thus passing untrusted data to this function with rsh/ssh enabled is insecure. CVE-2018-19935 A NULL pointer dereference leads to an application crash and a denial of service via an empty string in the message argument to the imap_mail function of ext/imap/php_imap.c. For Debian 8 "Jessie", these problems have been fixed in version 5.6.39+dfsg-0+deb8u1. We recommend that you upgrade your php5 packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - --------------------------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. 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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 iQIVAwUBXBcdNGaOgq3Tt24GAQh2TQ/8D03m5Atz0dDqzZbMaHFcXDkWd4R+FYHo v8/nkjxgkpMdAkoOKRxWPVl4ab/XRQMDw8knn5grnMuxrIZh9hEXnjXX55w2YygR 6rImg4Zwa5TWsg4aETLcKZASh8/ohjkrLsBg/D5Tmjy5eNx9n/NUwmJK776QkwZf O2aVZBT6grZfm5GpUsqnJ/Jkx42iVIXnoMJY2kN4hXEVTOTber0q+X9QoOjt+Oam UF8J8iaRyKXX2e60vRkwcyQvxvC3edyrLfsb4xaHEwrr84414SNqQT7LHk5Vz2an N7jQCeGR3ArS331NTUoPF7PEqwZB00iV0deynCo2yv8C4Z8Pmsr7cvvI75d0qlMp qTUJ9R6lqiIT+Q9inC2g0pz69AR4aOnERyivPCKYNXMZSX5ReJ1ZPvDaSs4gVnWx Dg3OQnd5MZDPEeUD8AkQxFFQLa5mL33L/Xwf6Xm/m2Cb2z95aZwLZqkXqv7Y+knT 449hRQ6K6vHYM3RJpBSSk2jwfxcJQElnoVKRKFWi+Zy5I9be/Cz9ZuKTceAzAjAY VsGxSv+Gp8TvqiN/oyYCVYPriOn9wBsTnFUvTFHXCu52OIFR5uTMSrkLaPF2FiDH HNz9FgEElhb9VbftnOwBxHtUN6+92h4P/YzINE6sCBkn+QSWZKtGi+DxgFkoebe1 Ag2DYX/H8Rw= =mhQz -----END PGP SIGNATURE-----