iSEC Partners Security Advisory - 2007-002-flactools http://www.isecpartners.com -------------------------------------------- flac123 0.0.9 - Stack overflow in comment parsing Vendor URL: http://flac-tools.sourceforge.net/ Severity: High (Allows for arbitrary code execution) Author: David Thiel <david[at]isecpartners[dot]com> Vendor notified: 2007-06-05 Public release: 2007-06-28 Systems affected: Verified code execution on FreeBSD 6.2 - should affect most systems. Advisory URL: http://www.isecpartners.com/advisories/2007-002-flactools.txt Summary: -------- flac123, also known as flac-tools, is vulnerable to a buffer overflow in vorbis comment parsing. This allows for the execution of arbitrary code. Details: -------- The function local__vcentry_parse_value() in vorbiscomment.c does not correctly handle a long value_length, causing it to overflow the buffer "dest" during memcpy(). Fix Information: ---------------- This is the sole issue corrected in version 0.0.10. Thanks to: ---------- Dan Johnson for quickly producing the fixed version. About iSEC Partners: -------------------- iSEC Partners is a full-service security consulting firm that provides penetration testing, secure systems development, security education and software design verification. Information on testing media players and codecs to expose and prevent similar bugs and tools to do the same will be presented at BlackHat USA 2007. 115 Sansome Street, Suite 1005 San Francisco, CA 94104 Phone: (415) 217-0052
setting status. Sound herd, please advise and bump as necessary.
sound, any news here?
(In reply to comment #2) > sound, any news here? > yep, 0.0.11 is now in tree fixing this issue (and as a bonus we can drop all of our patches since they have been merged upstream) tested it only with flac-1.2.0 so archteams/archtesters have to test it with stable version of flac.
Works fine here. Stable on x86
sparc stable.
media-sound/flac123-0.0.11 1. compiles on AMD64. 2. No collisions etc. 3. Works. Please mark stable on AMD64. Portage 2.1.2.11 (default-linux/amd64/2007.0/desktop, gcc-4.1.2, glibc-2.5-r4, 2.6.22-gentoo-r2 x86_64) ================================================================= System uname: 2.6.22-gentoo-r2 x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz Gentoo Base System release 1.12.9 Timestamp of tree: Mon, 20 Aug 2007 21:50:01 +0000 distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632) [enabled] ccache version 2.4 [enabled] dev-java/java-config: 1.3.7, 2.0.33-r1 dev-lang/python: 2.4.4-r4 dev-python/pycrypto: 2.0.1-r6 dev-util/ccache: 2.4-r7 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.17 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.24 virtual/os-headers: 2.6.21 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -msse3 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/splash /etc/terminfo" CXXFLAGS="-march=nocona -O2 -msse3 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="ccache collision-protect distcc distlocks metadata-transfer multilib-strict parallel-fetch sandbox sfperms strict test" GENTOO_MIRRORS="http://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/ http://ftp.du.se/pub/os/gentoo http://trumpetti.atm.tut.fi/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo http://ds.thn.htu.se/linux/gentoo" LC_ALL="en_DK.utf8" MAKEOPTS="-j6" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/layman/php-testing /usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X a52 aac acl acpi aiglx alsa amd64 apache2 arts atk berkdb bitmap-fonts cairo cdr cli cracklib crypt cups dbus dga directfb dri dts dvd dvdr dvdread eds emboss encode evo fam fbcn ffmpeg firefox fortran ftp gd gdbm gif gphoto2 gpm gstreamer gtk hal iconv icq ieee1394 ipv6 isdnlog java jpeg kde kerberos lm_sensors mad midi mikmod mjpeg mmx mozilla mp3 mpeg mplayer msn mudflap ncurses nls nptl nptlonly ogg oggvorbis opengl openmp pam pcre pda pdf perl png ppds pppd python qt qt3 qt3support qt4 quicktime readline reflection samba sdl session spell spl sse sse2 sse3 ssl svg tcpd test threads tiff truetype truetype-fonts type1-fonts unicode vorbis xcomposite xml xorg xscreensaver xv xvid zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="radeon" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
amd64 stable
ppc64 stable - sorry, I'm late.
glsa request filed.
Hi, it's GLSA 200709-06!
