openSUSE Security Update: update for putty ______________________________________________________________________________ Announcement ID: openSUSE-SU-2013:1355-1 Rating: moderate References: #833567 Cross-References: CVE-2013-4852 Affected Products: openSUSE 12.3 ______________________________________________________________________________ An update that fixes one vulnerability is now available. Description: Putty was updated to 0.63, bringing features, bug and security fixes. Changes: - Add 0001-Revert-the-default-for-font-bolding-style.patch (upstream patch fixing a cosmetic change introduced in 0.63) - Add Conflict tag against pssh package (Parallel SSH) due to conflicting files in /usr/bin - Do signature verification - update to 0.63 * Security fix: prevent a nefarious SSH server or network attacker from crashing PuTTY at startup in three different ways by presenting a maliciously constructed public key and signature. [bnc#833567] CVE-2013-4852 * Security fix: PuTTY no longer retains the private half of users' keys in memory by mistake after authenticating with them. * Revamped the internal configuration storage system to remove all fixed arbitrary limits on string lengths. In particular, there should now no longer be an unreasonably small limit on the number of port forwardings PuTTY can store. * Forwarded TCP connections which close one direction before the other should now be reliably supported, with EOF propagated independently in the two directions. This also fixes some instances of forwarding data corruption (if the corruption consisted of losing data from the very end of the connection) and some instances of PuTTY failing to close when the session is over (because it wrongly thought a forwarding channel was still active when it was not). * The terminal emulation now supports xterm's bracketed paste mode (allowing aware applications to tell the difference between typed and pasted text, so that e.g. editors need not apply inappropriate auto-indent). * You can now choose to display bold text by both brightening the foreground colour and changing the font, not just one or the other. * PuTTYgen will now never generate a 2047-bit key when asked for 2048 (or more generally n−1 bits when asked for n). * Some updates to default settings: PuTTYgen now generates 2048-bit keys by default (rather than 1024), and PuTTY defaults to UTF-8 encoding and 2000 lines of scrollback (rather than ISO 8859-1 and 200). * Unix: PSCP and PSFTP now preserve the Unix file permissions, on copies in both directions. * Unix: dead keys and compose-character sequences are now supported. * Unix: PuTTY and pterm now permit font fallback (where glyphs not present in your selected font are automatically filled in from other fonts on the system) even if you are using a server-side X11 font rather than a Pango client-side one. * Bug fixes too numerous to list, mostly resulting from running the code through Coverity Scan which spotted an assortment of memory and resource leaks, logic errors, and crashes in various circumstances. - packaging changes: * run make from base directory * run tests * remove putty-01-werror.diff (currently not needed) * remove putty-02-remove-gtk1.diff, putty-05-glib-deprecated.diff, putty-06-gtk2-indivhdr.diff (no longer needed) * refresh putty-03-config.diff * remove autoconf calls and requirements * package HTML documentation * package LICENCE file Patch Instructions: To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - openSUSE 12.3: zypper in -t patch openSUSE-2013-655 To bring your system up-to-date, use "zypper patch". Package List: - openSUSE 12.3 (i586 x86_64): putty-0.63-2.4.1 putty-debuginfo-0.63-2.4.1 putty-debugsource-0.63-2.4.1 References: http://support.novell.com/security/cve/CVE-2013-4852.html https://bugzilla.novell.com/833567