Security update for curl SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2017:2354-1 Final 1 1 2017-09-05T13:45:11Z current 2017-09-05T13:45:11Z 2017-09-05T13:45:11Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for curl This update for curl fixes the following issues: - CVE-2017-1000100: TFP sends more than buffer size and it could lead to a denial of service (bsc#1051644) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). slestso13-curl-13265 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2017/suse-su-20172354-1/ Link for SUSE-SU-2017:2354-1 https://lists.suse.com/pipermail/sle-security-updates/2017-September/003186.html E-Mail link for SUSE-SU-2017:2354-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1051644 SUSE Bug 1051644 https://www.suse.com/security/cve/CVE-2017-1000100/ SUSE CVE CVE-2017-1000100 page SUSE Studio Onsite 1.3 libcurl-devel-7.19.7-1.20.53.3.1 libcurl-devel-7.19.7-1.20.53.3.1 as a component of SUSE Studio Onsite 1.3 When doing a TFTP transfer and curl/libcurl is given a URL that contains a very long file name (longer than about 515 bytes), the file name is truncated to fit within the buffer boundaries, but the buffer size is still wrongly updated to use the untruncated length. This too large value is then used in the sendto() call, making curl attempt to send more data than what is actually put into the buffer. The endto() function will then read beyond the end of the heap based buffer. A malicious HTTP(S) server could redirect a vulnerable libcurl-using client to a crafted TFTP URL (if the client hasn't restricted which protocols it allows redirects to) and trick it to send private memory contents to a remote server over UDP. Limit curl's redirect protocols with --proto-redir and libcurl's with CURLOPT_REDIR_PROTOCOLS. CVE-2017-1000100 SUSE Studio Onsite 1.3:libcurl-devel-7.19.7-1.20.53.3.1 moderate 1.5 AV:L/AC:M/Au:S/C:P/I:N/A:N 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2017/suse-su-20172354-1/ https://www.suse.com/security/cve/CVE-2017-1000100.html CVE-2017-1000100 https://bugzilla.suse.com/1051644 SUSE Bug 1051644