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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0519 -- [RedHat] Critical: gnutls security update 21 May 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: gnutls Publisher: Red Hat Operating System: Red Hat Linux 5 Red Hat Linux 4 Impact: Execute Arbitrary Code/Commands Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2008-1950 CVE-2008-1949 CVE-2008-1948 Ref: AL-2008.0062 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2008-0492.html https://rhn.redhat.com/errata/RHSA-2008-0489.html Comment: Note that there are two Red Hat advisories contained in this bulletin - one for Red Hat 5 and the other for Red Hat 4. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----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 <secalert@redhat.com>. 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----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: gnutls security update Advisory ID: RHSA-2008:0492-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0492.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 4. This update has been rated as having important security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, 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 4 does not ship with any applications directly affected by this flaw. Third-party software which runs on Red Hat Enterprise Linux 4 could, however, be affected by this vulnerability. Consequently, we have assigned it important 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 AS version 4: Source: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/gnutls-1.0.20-4.el4_6.src.rpm i386: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-devel-1.0.20-4.el4_6.i386.rpm ia64: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-1.0.20-4.el4_6.ia64.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.ia64.rpm gnutls-devel-1.0.20-4.el4_6.ia64.rpm ppc: gnutls-1.0.20-4.el4_6.ppc.rpm gnutls-1.0.20-4.el4_6.ppc64.rpm gnutls-debuginfo-1.0.20-4.el4_6.ppc.rpm gnutls-debuginfo-1.0.20-4.el4_6.ppc64.rpm gnutls-devel-1.0.20-4.el4_6.ppc.rpm s390: gnutls-1.0.20-4.el4_6.s390.rpm gnutls-debuginfo-1.0.20-4.el4_6.s390.rpm gnutls-devel-1.0.20-4.el4_6.s390.rpm s390x: gnutls-1.0.20-4.el4_6.s390.rpm gnutls-1.0.20-4.el4_6.s390x.rpm gnutls-debuginfo-1.0.20-4.el4_6.s390.rpm gnutls-debuginfo-1.0.20-4.el4_6.s390x.rpm gnutls-devel-1.0.20-4.el4_6.s390x.rpm x86_64: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-1.0.20-4.el4_6.x86_64.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm gnutls-devel-1.0.20-4.el4_6.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: Source: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/gnutls-1.0.20-4.el4_6.src.rpm i386: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-devel-1.0.20-4.el4_6.i386.rpm x86_64: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-1.0.20-4.el4_6.x86_64.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm gnutls-devel-1.0.20-4.el4_6.x86_64.rpm Red Hat Enterprise Linux ES version 4: Source: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/gnutls-1.0.20-4.el4_6.src.rpm i386: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-devel-1.0.20-4.el4_6.i386.rpm ia64: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-1.0.20-4.el4_6.ia64.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.ia64.rpm gnutls-devel-1.0.20-4.el4_6.ia64.rpm x86_64: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-1.0.20-4.el4_6.x86_64.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm gnutls-devel-1.0.20-4.el4_6.x86_64.rpm Red Hat Enterprise Linux WS version 4: Source: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/gnutls-1.0.20-4.el4_6.src.rpm i386: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-devel-1.0.20-4.el4_6.i386.rpm ia64: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-1.0.20-4.el4_6.ia64.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.ia64.rpm gnutls-devel-1.0.20-4.el4_6.ia64.rpm x86_64: gnutls-1.0.20-4.el4_6.i386.rpm gnutls-1.0.20-4.el4_6.x86_64.rpm gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm gnutls-devel-1.0.20-4.el4_6.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/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. 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) iD8DBQFIMubjXlSAg2UNWIIRAunQAJ9JqlTaGnSiqVyym9rPhEQFNIY6gQCeKAUH avMSEbLh4NDwZLSw6lbF0ug= =UUQi - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBSDOu/ih9+71yA2DNAQJjFgP9Hx/VwNg+uYWEL8VPNOLD7KZMQ2f85Qia MWjK6fhg8iJEFLTd9HniODizzTy0HknNAU9mDjZ6IjMRJxSQAb4up1RAwc/UV9YL syzcc2AS8HEf8DfVAVeGQkWORYm85avV4aM9KzmKeJbLXO9lXrhJIaoDYBIuOdtp JOL0pSoeXwg= =FhJS -----END PGP SIGNATURE-----