DSA-1511-1 libicu -- various

Debian Security Advisory

DSA-1511-1 libicu -- various

Date Reported:

03 Mar 2008

Affected Packages:

libicu

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 463688.

More information:

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 3.6-2etch4.

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

We recommend that you upgrade your libicu package.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Source:

http://security.debian.org/pool/updates/main/i/icu/icu_3.6.orig.tar.gz

http://security.debian.org/pool/updates/main/i/icu/icu_3.6-2etch4.dsc

http://security.debian.org/pool/updates/main/i/icu/icu_3.6-2etch4.diff.gz

Architecture-independent component:

http://security.debian.org/pool/updates/main/i/icu/icu-doc_3.6-2etch4_all.deb

Alpha:

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_alpha.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_amd64.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_arm.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_arm.deb

HP Precision:

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_hppa.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_i386.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_ia64.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_ia64.deb

Big-endian MIPS:

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_mips.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_mips.deb

PowerPC:

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_powerpc.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_s390.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/i/icu/libicu36_3.6-2etch4_sparc.deb

http://security.debian.org/pool/updates/main/i/icu/libicu36-dev_3.6-2etch4_sparc.deb

MD5 checksums of the listed files are available in the original advisory.