news 28 Posted May 20, 2008 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Critical: gnutls security update Advisory ID: RHSA-2008:0489-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0489.html Issue date: 2008-05-20 CVE Names: CVE-2008-1948 CVE-2008-1949 CVE-2008-1950 ===================================================================== 1. Summary: Updated gnutls packages that fix several security issues are now available for Red Hat Enterprise Linux 5. This update has been rated as having critical security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 3. Description: The GnuTLS Library provides support for cryptographic algorithms and protocols such as TLS. GnuTLS includes libtasn1, a library developed for ASN.1 structures management that includes DER encoding and decoding. Flaws were found in the way GnuTLS handles malicious client connections. A malicious remote client could send a specially crafted request to a service using GnuTLS that could cause the service to crash. (CVE-2008-1948, CVE-2008-1949, CVE-2008-1950) We believe it is possible to leverage the flaw CVE-2008-1948 to execute arbitrary code but have been unable to prove this at the time of releasing this advisory. Red Hat Enterprise Linux 5 includes applications, such as CUPS, that would be directly vulnerable to any such an exploit, however. Consequently, we have assigned it critical severity. Users of GnuTLS are advised to upgrade to these updated packages, which contain a backported patch that corrects these issues. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188 5. Bugs fixed (http://bugzilla.redhat.com/): 447461 - CVE-2008-1948 GNUTLS-SA-2008-1-1 GnuTLS buffer overflow 447462 - CVE-2008-1949 GNUTLS-SA-2008-1-2 GnuTLS null-pointer dereference 447463 - CVE-2008-1950 GNUTLS-SA-2008-1-3 GnuTLS memory overread flaw 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/gnutls-1.4.1-3.el5_1.src.rpm i386: gnutls-1.4.1-3.el5_1.i386.rpm gnutls-debuginfo-1.4.1-3.el5_1.i386.rpm gnutls-utils-1.4.1-3.el5_1.i386.rpm x86_64: gnutls-1.4.1-3.el5_1.i386.rpm gnutls-1.4.1-3.el5_1.x86_64.rpm gnutls-debuginfo-1.4.1-3.el5_1.i386.rpm gnutls-debuginfo-1.4.1-3.el5_1.x86_64.rpm gnutls-utils-1.4.1-3.el5_1.x86_64.rpm RHEL Desktop Workstation (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/gnutls-1.4.1-3.el5_1.src.rpm i386: gnutls-debuginfo-1.4.1-3.el5_1.i386.rpm gnutls-devel-1.4.1-3.el5_1.i386.rpm x86_64: gnutls-debuginfo-1.4.1-3.el5_1.i386.rpm gnutls-debuginfo-1.4.1-3.el5_1.x86_64.rpm gnutls-devel-1.4.1-3.el5_1.i386.rpm gnutls-devel-1.4.1-3.el5_1.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/gnutls-1.4.1-3.el5_1.src.rpm i386: gnutls-1.4.1-3.el5_1.i386.rpm gnutls-debuginfo-1.4.1-3.el5_1.i386.rpm gnutls-devel-1.4.1-3.el5_1.i386.rpm gnutls-utils-1.4.1-3.el5_1.i386.rpm ia64: gnutls-1.4.1-3.el5_1.i386.rpm gnutls-1.4.1-3.el5_1.ia64.rpm gnutls-debuginfo-1.4.1-3.el5_1.i386.rpm gnutls-debuginfo-1.4.1-3.el5_1.ia64.rpm gnutls-devel-1.4.1-3.el5_1.ia64.rpm gnutls-utils-1.4.1-3.el5_1.ia64.rpm ppc: gnutls-1.4.1-3.el5_1.ppc.rpm gnutls-1.4.1-3.el5_1.ppc64.rpm gnutls-debuginfo-1.4.1-3.el5_1.ppc.rpm gnutls-debuginfo-1.4.1-3.el5_1.ppc64.rpm gnutls-devel-1.4.1-3.el5_1.ppc.rpm gnutls-devel-1.4.1-3.el5_1.ppc64.rpm gnutls-utils-1.4.1-3.el5_1.ppc.rpm s390x: gnutls-1.4.1-3.el5_1.s390.rpm gnutls-1.4.1-3.el5_1.s390x.rpm gnutls-debuginfo-1.4.1-3.el5_1.s390.rpm gnutls-debuginfo-1.4.1-3.el5_1.s390x.rpm gnutls-devel-1.4.1-3.el5_1.s390.rpm gnutls-devel-1.4.1-3.el5_1.s390x.rpm gnutls-utils-1.4.1-3.el5_1.s390x.rpm x86_64: gnutls-1.4.1-3.el5_1.i386.rpm gnutls-1.4.1-3.el5_1.x86_64.rpm gnutls-debuginfo-1.4.1-3.el5_1.i386.rpm gnutls-debuginfo-1.4.1-3.el5_1.x86_64.rpm gnutls-devel-1.4.1-3.el5_1.i386.rpm gnutls-devel-1.4.1-3.el5_1.x86_64.rpm gnutls-utils-1.4.1-3.el5_1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1948 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1949 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1950 http://www.redhat.com/security/updates/classification/#critical 8. Contact: The Red Hat security contact is . More contact details at https://www.redhat.com/security/team/contact/ Copyright 2008 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFIMuUBXlSAg2UNWIIRAlKIAJ9hIDhnAHsww5O+8RpFuW2njUDgFACfQqZf XAbhp8KXDUbhkeIiL6wIEWM= =P2DK -----END PGP SIGNATURE----- -- Share this post Link to post
