openSUSE Security Update: Security update for tor ______________________________________________________________________________ Announcement ID: openSUSE-SU-2015:0712-1 Rating: moderate References: #926097 Cross-References: CVE-2015-2928 CVE-2015-2929 Affected Products: openSUSE 13.2 openSUSE 13.1 ______________________________________________________________________________ An update that fixes two vulnerabilities is now available. Description: Tor was updated to 0.2.4.27 to fix two security issues that could be used by an attacker to crash hidden services, or crash clients visiting hidden services. Hidden services should upgrade as soon as possible. The following security issues were fixed: * A malicious client could trigger an assertion failure and halt a hidden service. (CVE-2015-2928) * A client could crash with an assertion failure when parsing a malformed hidden service descriptor. (CVE-2015-2929) This release also backports a simple improvement to make hidden services a bit less vulnerable to denial-of-service attacks: * Introduction points no longer allow multiple INTRODUCE1 cells to arrive on the same circuit. This should make it more expensive for attackers to overwhelm hidden services with introductions. Patch Instructions: To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - openSUSE 13.2: zypper in -t patch openSUSE-2015-300=1 - openSUSE 13.1: zypper in -t patch openSUSE-2015-300=1 To bring your system up-to-date, use "zypper patch". Package List: - openSUSE 13.2 (i586 x86_64): tor-0.2.4.27-13.1 tor-debuginfo-0.2.4.27-13.1 tor-debugsource-0.2.4.27-13.1 - openSUSE 13.1 (i586 x86_64): tor-0.2.4.27-5.30.1 tor-debuginfo-0.2.4.27-5.30.1 tor-debugsource-0.2.4.27-5.30.1 References: https://www.suse.com/security/cve/CVE-2015-2928.html https://www.suse.com/security/cve/CVE-2015-2929.html https://bugzilla.suse.com/926097