Articles / Debian: New libicu packages…

Debian: New libicu packages fix multiple problems

Several local vulnerabilities have been discovered in libicu, International Components for Unicode. libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero (aka \0), which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames. Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. Fixed packages are available from security.debian.org.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ------------------------------------------------------------------------
Debian Security Advisory DSA-1511-1                  security@debian.org
http://www.debian.org/security/                               Steve Kemp
March 03, 2008                        http://www.debian.org/security/faq
- ------------------------------------------------------------------------

Package        : libicu
Vulnerability  : various
Problem type   : local
Debian-specific: no
CVE Id(s)      : 2007-4770 2007-4771
Debian Bug     : 463688

Several local vulnerabilities have been discovered in libicu,
International Components for Unicode, The Common Vulnerabilities and
Exposures project identifies the following problems:

CVE-2007-4770
 libicu in International Components for Unicode (ICU) 3.8.1 and earlier
 attempts to process backreferences to the nonexistent capture group
 zero (aka \0), which might allow context-dependent attackers to read
 from, or write to, out-of-bounds memory locations, related to
 corruption of REStackFrames.

CVE-2007-4771
 Heap-based buffer overflow in the doInterval function in regexcmp.cpp
 in libicu in International Components for Unicode (ICU) 3.8.1 and
 earlier allows context-dependent attackers to cause a denial of
 service (memory consumption) and possibly have unspecified other
 impact via a regular expression that writes a large amount of data to
 the backtracking stack.

For the stable distribution (etch), these problems have been fixed in
version 3.6-2etch1.

For the unstable distribution (sid), these problems have been fixed in
version 3.8-6.

We recommend that you upgrade your libicu package.


Upgrade instructions
- --------------------

wget url
       will fetch the file for you
dpkg -i file.deb
       will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
       will update the internal database
apt-get upgrade
       will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 4.0 alias etch
- -------------------------------

Source archives:

 http://security.debian.org/pool/updates/main/i/icu/icu_3.6.orig.tar.gz
   Size/MD5 checksum:  9778863 0f1bda1992b4adca62da68a7ad79d830
 http://security.debian.org/pool/updates/main/i/icu/icu_3.6-2etch1.dsc
   Size/MD5 checksum:      591 13dcea6b1c9a282147b99c4867db6ee8
 http://security.debian.org/pool/updates/main/i/icu/icu_3.6-2etch1.diff.gz
   Size/MD5 checksum:     9552 82e560098b24b245872b163a522a80b8

Architecture independent packages:

 http://security.debian.org/pool/updates/main/i/icu/icu-doc_3.6-2etch1_all.deb
   Size/MD5 checksum:  3332194 5da76263265814905245b97daec4c1c3

alpha architecture (DEC Alpha)

 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_alpha.deb
   Size/MD5 checksum:  7028746 b6b13d0fa262501923c97a859b400d10
 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_alpha.deb
   Size/MD5 checksum:  5581984 0cd37ce9f234b9207accc424dc191f49

amd64 architecture (AMD x86_64 (AMD64))

 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_amd64.deb
   Size/MD5 checksum:  6585582 9fe0ee74625a985628c9af096dd13827
 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_amd64.deb
   Size/MD5 checksum:  5444228 250851db4a613e9a5d0029d73c1196c0

arm architecture (ARM)

 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_arm.deb
   Size/MD5 checksum:  6631114 a73ff442415ca3bc336f1fb49e3aa701
 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_arm.deb
   Size/MD5 checksum:  5458358 c6d533fd7c1c51efbac58d2a96a386fb

hppa architecture (HP PA RISC)

 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_hppa.deb
   Size/MD5 checksum:  7090294 aadca0bc8fb9307ea7fe293406a10e5f
 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_hppa.deb
   Size/MD5 checksum:  5909956 07bd8e6c733072fca8b96cc10e210a68

i386 architecture (Intel ia32)

 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_i386.deb
   Size/MD5 checksum:  5468656 532aa02d6d67d4b6527ac8c29c9d110e
 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_i386.deb
   Size/MD5 checksum:  6465540 bfd4d908b552bba2d871771f86369ec7

ia64 architecture (Intel ia64)

 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_ia64.deb
   Size/MD5 checksum:  7238880 10b410fcd460e47c3619de88167b74f5
 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_ia64.deb
   Size/MD5 checksum:  5865536 dbc0ec913f08682cec4f1b75d35e0531

mips architecture (MIPS (Big Endian))

 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_mips.deb
   Size/MD5 checksum:  7047506 c0b327e8229d1d4d33131453cdac6508
 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_mips.deb
   Size/MD5 checksum:  5748172 126a2f0bb4b61cc54d70edb882191576

powerpc architecture (PowerPC)

 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_powerpc.deb
   Size/MD5 checksum:  5747754 8bc631ad394a86e11c24c5b9ffd76f1d
 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_powerpc.deb
   Size/MD5 checksum:  6888906 c5542d6d957327fd6f540029f4195772

s390 architecture (IBM S/390)

 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_s390.deb
   Size/MD5 checksum:  5776762 16a114247a39201f3966ff4f22b80342
 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_s390.deb
   Size/MD5 checksum:  6895102 15624240d20d2e0aa7a29bbc90895908

sparc architecture (Sun SPARC/UltraSPARC)

 http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch1_sparc.deb
   Size/MD5 checksum:  5671256 2c7a50b1fe50dbe4b3ef8995d91e5946
 http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch1_sparc.deb
   Size/MD5 checksum:  6771832 84a95a10934106c8cfc409032191de98


 These files will probably be moved into the stable distribution on
 its next update.

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and http://packages.debian.org/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQFHzGoFwM/Gs81MDZ0RApgrAJ9Jd4cpLRAJ7WTQAnnpd8d4K3/mvwCeNusV
OLKQ6zeO2ePgNnldMI08TRU=
=ay/5
-----END PGP SIGNATURE-----

Recent comments

02 Jul 2008 21:51 Avatar srl295

ICU 4.0 fixes these and other issues
ICU 4.0, released today, fixes these and other issues.

http://icu-project.org/download/4.0.html#ICU4C

Screenshot

Project Spotlight

Kigo Video Converter Ultimate for Mac

A tool for converting and editing videos.

Screenshot

Project Spotlight

Kid3

An efficient tagger for MP3, Ogg/Vorbis, and FLAC files.