=========================================================== Ubuntu Security Notice USN-547-1 November 27, 2007 pcre3 vulnerabilities CVE-2007-1659, CVE-2007-1660, CVE-2007-1661, CVE-2007-1662, CVE-2007-4766, CVE-2007-4767, CVE-2007-4768 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 6.10 Ubuntu 7.04 Ubuntu 7.10 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: libpcre3 7.4-0ubuntu0.6.06.1 libpcrecpp0 7.4-0ubuntu0.6.06.1 Ubuntu 6.10: libpcre3 7.4-0ubuntu0.6.10.1 libpcrecpp0 7.4-0ubuntu0.6.10.1 Ubuntu 7.04: libpcre3 7.4-0ubuntu0.7.04.1 libpcrecpp0 7.4-0ubuntu0.7.04.1 Ubuntu 7.10: libpcre3 7.4-0ubuntu0.7.10.1 libpcrecpp0 7.4-0ubuntu0.7.10.1 After a standard system upgrade you need to reboot your computer to effect the necessary changes. Due to the large internal code changes needed to solve outstanding flaws, it was not possible to backport all the upstream security fixes to the earlier released versions. To address this, the pcre3 library has been updated to the latest stable release (7.4), which includes fixes for all known security issues. While the new version is ABI compatible, efforts have been taken to maintain behavioral compatibility with the earlier versions. Details follow: Tavis Ormandy and Will Drewry discovered multiple flaws in the regular expression handling of PCRE. By tricking a user or service into running specially crafted expressions via applications linked against libpcre3, a remote attacker could crash the application, monopolize CPU resources, or possibly execute arbitrary code with the application's privileges. Updated packages for Ubuntu 6.06 LTS: Source archives: http://security.ubuntu.com/ubuntu/pool/main/p/pcre3/pcre3_7.4-0ubuntu0.6.06.1.diff.gz Size/MD5: 79804 404e9d3c5f0f13a5bac7fa99115ad1af http://security.ubuntu.com/ubuntu/pool/main/p/pcre3/pcre3_7.4-0ubuntu0.6.06.1.dsc Size/MD5: 619 feb0f718df6ff5f42f1895bcbe6e6c16 http://security.ubuntu.com/ubuntu/pool/main/p/pcre3/pcre3_7.4.orig.tar.gz Size/MD5: 1106897 de886b22cddc8eaf620a421d3041ee0b Architecture independent packages: http://security.ubuntu.com/ubuntu/pool/universe/p/pcre3/pgrep_7.4-0ubuntu0.6.06.1_all.deb Size/MD5: 774 d68b2ef645092b61be193deb856461a0 amd64 architecture (Athlon64, Opteron, EM64T Xeon): http://security.ubuntu.com/ubuntu/pool/main/p/pcre3/libpcre3-dev_7.4-0ubuntu0.6.06.1_amd64.deb Size/MD5: 254754 2c35de5f62db0cf07fcc4e4483b42657 http://security.ubuntu.com/ubuntu/pool/main/p/pcre3/libpcre3_7.4-0ubuntu0.6.06.1_amd64.deb Size/MD5: 198544 055a4358bcc65f14a2fddb08611dc0e0 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