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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2542.2 curl vulnerabilities 24 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: curl Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-1000254 CVE-2017-1000101 CVE-2017-1000100 CVE-2017-7407 CVE-2016-9586 Reference: ESB-2017.1774 ESB-2017.0814 Original Bulletin: http://www.ubuntu.com/usn/usn-3441-1 Revision History: October 24 2017: USN-3441-1 fixed several vulnerabilities in curl. This update provides the corresponding update for Ubuntu 12.04 ESM. October 11 2017: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3441-2: curl vulnerabilities Ubuntu Security Notice USN-3441-2 23rd October, 2017 curl vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in curl. Software description curl - HTTP, HTTPS, and FTP client and client libraries Details USN-3441-1 fixed several vulnerabilities in curl. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Daniel Stenberg discovered that curl incorrectly handled large floating point output. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-9586) Even Rouault discovered that curl incorrectly handled large file names when doing TFTP transfers. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive memory contents. (CVE-2017-1000100) Brian Carpenter and Yongji Ouyang discovered that curl incorrectly handled numerical range globbing. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive memory contents. (CVE-2017-1000101) Max Dymond discovered that curl incorrectly handled FTP PWD responses. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service. (CVE-2017-1000254) Brian Carpenter discovered that curl incorrectly handled IMAP FETCH response lines. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code.(CVE-2017-1000257) Brian Carpenter discovered that curl incorrectly handled the --write-out command line option. A local attacker could possibly use this issue to obtain sensitive memory contents. (CVE-2017-7407) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 12.04 LTS: libcurl3-nss 7.22.0-3ubuntu4.18 curl 7.22.0-3ubuntu4.18 libcurl3-gnutls 7.22.0-3ubuntu4.18 libcurl3 7.22.0-3ubuntu4.18 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2016-9586, CVE-2017-1000100, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-7407 - --------------------------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 iQIVAwUBWe6yc4x+lLeg9Ub1AQia5w//cWKyzMxbY8Lf/3GkoFHeE2RQT7eEtFxE ftTVRYHQ5/q/54DxL3NkCLL+mKRIQRXdsbak+3BvRE9oK/I4XqCv2L4ORo3ZZx7I 2dudOyODA9Tm9CRV+j3PXjn9Q64JvA7FwNIaNRqCsAXJ6pnkSY+itC9XhCwPctHn aGhxE+OcAzktMZ+DzAN+rPhQmblUbDDQP9dcIuWsZA/srKQfCJYvg9i/kLn9Yz9y GrovjSKzMC2JYBwCs0BgKVoaSuwrQ0GggFPbY30qqBkIUNCBi1k/y5wG2kx4zesr 3s9vEBR+QEKBd4it+MSMbQ70k3Iq9iamimZ4q6QQyJpbtTzwGMPyeTq0NuDkpfrk 5yYAHHqlVIA/ewDZggQlNklcGfC5W0zTf0WK+ZR2RP5+O0PR/W/9NcVho7y8hrs2 XDHdwPW4YlmxJjzjpB78/tD16WFSQ+98amcxuDVt2UoEjH2e4Bv2VEnzeiVaA5ps iHwHO9C/Rv4Q8WOPQw+4aSCN6EmAs7i7R0c10ZfNqjyezeOoOdL0P29rH1HYxoYM sc6OpkkEXLVin866OrdGfCvp7FkNUDMnM3prgIIihgoZ7C/UL2bPwSBT2DRDEGsl Oo4RmERoQuqF0o6ZcIgDVKXSguXnNdJtDzoe0UR2Q1qvzvOZiytVk1uanAZdQKJY lYu0yGws3LA= =AL/a -----END PGP SIGNATURE-----