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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0320 Important: gnutls security update 28 March 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: gnutls Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-1573 CVE-2012-1569 CVE-2011-4128 Reference: ESB-2012.0319 ESB-2012.0314 ESB-2012.0313 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0428.html https://rhn.redhat.com/errata/RHSA-2012-0428.html Comment: This bulletin contains two (2) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: gnutls security update Advisory ID: RHSA-2012:0428-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0428.html Issue date: 2012-03-27 CVE Names: CVE-2011-4128 CVE-2012-1569 CVE-2012-1573 ===================================================================== 1. Summary: Updated gnutls packages that fix three security issues are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). GnuTLS includes libtasn1, a library developed for ASN.1 (Abstract Syntax Notation One) structures management that includes DER (Distinguished Encoding Rules) encoding and decoding. A flaw was found in the way GnuTLS decrypted malformed TLS records. This could cause a TLS/SSL client or server to crash when processing a specially-crafted TLS record from a remote TLS/SSL connection peer. (CVE-2012-1573) A flaw was found in the way libtasn1 decoded DER data. An attacker could create a carefully-crafted X.509 certificate that, when parsed by an application that uses GnuTLS, could cause the application to crash. (CVE-2012-1569) A boundary error was found in the gnutls_session_get_data() function. A malicious TLS/SSL server could use this flaw to crash a TLS/SSL client or, possibly, execute arbitrary code as the client, if the client passed a fixed-sized buffer to gnutls_session_get_data() before checking the real size of the session data provided by the server. (CVE-2011-4128) Red Hat would like to thank Matthew Hall of Mu Dynamics for reporting CVE-2012-1573 and CVE-2012-1569. Users of GnuTLS are advised to upgrade to these updated packages, which contain backported patches to correct these issues. For the update to take effect, all applications linked to the GnuTLS library must be restarted, or the system rebooted. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 752308 - CVE-2011-4128 gnutls: buffer overflow in gnutls_session_get_data() (GNUTLS-SA-2011-2) 804920 - CVE-2012-1569 libtasn1: DER decoding buffer overflow (GNUTLS-SA-2012-3, MU-201202-02) 805432 - CVE-2012-1573 gnutls: TLS record handling issue (GNUTLS-SA-2012-2, MU-201202-01) 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-1.4.1-7.el5_8.2.src.rpm i386: gnutls-1.4.1-7.el5_8.2.i386.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.i386.rpm gnutls-utils-1.4.1-7.el5_8.2.i386.rpm x86_64: gnutls-1.4.1-7.el5_8.2.i386.rpm gnutls-1.4.1-7.el5_8.2.x86_64.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.i386.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.x86_64.rpm gnutls-utils-1.4.1-7.el5_8.2.x86_64.rpm RHEL Desktop Workstation (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/gnutls-1.4.1-7.el5_8.2.src.rpm i386: gnutls-debuginfo-1.4.1-7.el5_8.2.i386.rpm gnutls-devel-1.4.1-7.el5_8.2.i386.rpm x86_64: gnutls-debuginfo-1.4.1-7.el5_8.2.i386.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.x86_64.rpm gnutls-devel-1.4.1-7.el5_8.2.i386.rpm gnutls-devel-1.4.1-7.el5_8.2.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/gnutls-1.4.1-7.el5_8.2.src.rpm i386: gnutls-1.4.1-7.el5_8.2.i386.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.i386.rpm gnutls-devel-1.4.1-7.el5_8.2.i386.rpm gnutls-utils-1.4.1-7.el5_8.2.i386.rpm ia64: gnutls-1.4.1-7.el5_8.2.i386.rpm gnutls-1.4.1-7.el5_8.2.ia64.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.i386.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.ia64.rpm gnutls-devel-1.4.1-7.el5_8.2.ia64.rpm gnutls-utils-1.4.1-7.el5_8.2.ia64.rpm ppc: gnutls-1.4.1-7.el5_8.2.ppc.rpm gnutls-1.4.1-7.el5_8.2.ppc64.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.ppc.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.ppc64.rpm gnutls-devel-1.4.1-7.el5_8.2.ppc.rpm gnutls-devel-1.4.1-7.el5_8.2.ppc64.rpm gnutls-utils-1.4.1-7.el5_8.2.ppc.rpm s390x: gnutls-1.4.1-7.el5_8.2.s390.rpm gnutls-1.4.1-7.el5_8.2.s390x.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.s390.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.s390x.rpm gnutls-devel-1.4.1-7.el5_8.2.s390.rpm gnutls-devel-1.4.1-7.el5_8.2.s390x.rpm gnutls-utils-1.4.1-7.el5_8.2.s390x.rpm x86_64: gnutls-1.4.1-7.el5_8.2.i386.rpm gnutls-1.4.1-7.el5_8.2.x86_64.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.i386.rpm gnutls-debuginfo-1.4.1-7.el5_8.2.x86_64.rpm gnutls-devel-1.4.1-7.el5_8.2.i386.rpm gnutls-devel-1.4.1-7.el5_8.2.x86_64.rpm gnutls-utils-1.4.1-7.el5_8.2.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://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-4128.html https://www.redhat.com/security/data/cve/CVE-2012-1569.html https://www.redhat.com/security/data/cve/CVE-2012-1573.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPckgHXlSAg2UNWIIRAp9/AKCNAvxeYkqSIZsRjH7H0oymhSCOhQCfZyQF tmK7vHPL9UA4mOTEYlCkoVg= =vUmN - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: gnutls security update Advisory ID: RHSA-2012:0429-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0429.html Issue date: 2012-03-27 CVE Names: CVE-2011-4128 CVE-2012-1573 ===================================================================== 1. Summary: Updated gnutls packages that fix two security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. Description: The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). A flaw was found in the way GnuTLS decrypted malformed TLS records. This could cause a TLS/SSL client or server to crash when processing a specially-crafted TLS record from a remote TLS/SSL connection peer. (CVE-2012-1573) A boundary error was found in the gnutls_session_get_data() function. A malicious TLS/SSL server could use this flaw to crash a TLS/SSL client or, possibly, execute arbitrary code as the client, if the client passed a fixed-sized buffer to gnutls_session_get_data() before checking the real size of the session data provided by the server. (CVE-2011-4128) Red Hat would like to thank Matthew Hall of Mu Dynamics for reporting CVE-2012-1573. Users of GnuTLS are advised to upgrade to these updated packages, which contain backported patches to correct these issues. For the update to take effect, all applications linked to the GnuTLS library must be restarted, or the system rebooted. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 752308 - CVE-2011-4128 gnutls: buffer overflow in gnutls_session_get_data() (GNUTLS-SA-2011-2) 805432 - CVE-2012-1573 gnutls: TLS record handling issue (GNUTLS-SA-2012-2, MU-201202-01) 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm i386: gnutls-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-utils-2.8.5-4.el6_2.2.i686.rpm x86_64: gnutls-2.8.5-4.el6_2.2.i686.rpm gnutls-2.8.5-4.el6_2.2.x86_64.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-utils-2.8.5-4.el6_2.2.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm i386: gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-devel-2.8.5-4.el6_2.2.i686.rpm gnutls-guile-2.8.5-4.el6_2.2.i686.rpm x86_64: gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-devel-2.8.5-4.el6_2.2.i686.rpm gnutls-devel-2.8.5-4.el6_2.2.x86_64.rpm gnutls-guile-2.8.5-4.el6_2.2.i686.rpm gnutls-guile-2.8.5-4.el6_2.2.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm x86_64: gnutls-2.8.5-4.el6_2.2.i686.rpm gnutls-2.8.5-4.el6_2.2.x86_64.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-utils-2.8.5-4.el6_2.2.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm x86_64: gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-devel-2.8.5-4.el6_2.2.i686.rpm gnutls-devel-2.8.5-4.el6_2.2.x86_64.rpm gnutls-guile-2.8.5-4.el6_2.2.i686.rpm gnutls-guile-2.8.5-4.el6_2.2.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm i386: gnutls-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-devel-2.8.5-4.el6_2.2.i686.rpm gnutls-utils-2.8.5-4.el6_2.2.i686.rpm ppc64: gnutls-2.8.5-4.el6_2.2.ppc.rpm gnutls-2.8.5-4.el6_2.2.ppc64.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.ppc.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.ppc64.rpm gnutls-devel-2.8.5-4.el6_2.2.ppc.rpm gnutls-devel-2.8.5-4.el6_2.2.ppc64.rpm gnutls-utils-2.8.5-4.el6_2.2.ppc64.rpm s390x: gnutls-2.8.5-4.el6_2.2.s390.rpm gnutls-2.8.5-4.el6_2.2.s390x.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.s390.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.s390x.rpm gnutls-devel-2.8.5-4.el6_2.2.s390.rpm gnutls-devel-2.8.5-4.el6_2.2.s390x.rpm gnutls-utils-2.8.5-4.el6_2.2.s390x.rpm x86_64: gnutls-2.8.5-4.el6_2.2.i686.rpm gnutls-2.8.5-4.el6_2.2.x86_64.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-devel-2.8.5-4.el6_2.2.i686.rpm gnutls-devel-2.8.5-4.el6_2.2.x86_64.rpm gnutls-utils-2.8.5-4.el6_2.2.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm i386: gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-guile-2.8.5-4.el6_2.2.i686.rpm ppc64: gnutls-debuginfo-2.8.5-4.el6_2.2.ppc.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.ppc64.rpm gnutls-guile-2.8.5-4.el6_2.2.ppc.rpm gnutls-guile-2.8.5-4.el6_2.2.ppc64.rpm s390x: gnutls-debuginfo-2.8.5-4.el6_2.2.s390.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.s390x.rpm gnutls-guile-2.8.5-4.el6_2.2.s390.rpm gnutls-guile-2.8.5-4.el6_2.2.s390x.rpm x86_64: gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-guile-2.8.5-4.el6_2.2.i686.rpm gnutls-guile-2.8.5-4.el6_2.2.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm i386: gnutls-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-devel-2.8.5-4.el6_2.2.i686.rpm gnutls-utils-2.8.5-4.el6_2.2.i686.rpm x86_64: gnutls-2.8.5-4.el6_2.2.i686.rpm gnutls-2.8.5-4.el6_2.2.x86_64.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-devel-2.8.5-4.el6_2.2.i686.rpm gnutls-devel-2.8.5-4.el6_2.2.x86_64.rpm gnutls-utils-2.8.5-4.el6_2.2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/gnutls-2.8.5-4.el6_2.2.src.rpm i386: gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-guile-2.8.5-4.el6_2.2.i686.rpm x86_64: gnutls-debuginfo-2.8.5-4.el6_2.2.i686.rpm gnutls-debuginfo-2.8.5-4.el6_2.2.x86_64.rpm gnutls-guile-2.8.5-4.el6_2.2.i686.rpm gnutls-guile-2.8.5-4.el6_2.2.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://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-4128.html https://www.redhat.com/security/data/cve/CVE-2012-1573.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPckhAXlSAg2UNWIIRAmbfAKCMppVGB5qRgedlOLAE+QUB2mFMSgCgjXwd O8Tv6zUt/Ssdd4Asx5dfUvQ= =ghoO - -----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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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBT3KIH+4yVqjM2NGpAQIwjQ/+Ji9fUduLdYu/E10urvDvytFRWLAUGv4W oFy/LIJOM0CKkk2LPEFkyO6MbYOhbwMgDhURAcjANhwGJ1ONK1+6FR/eHwoK54my oOqdFGubxWkauY1ncj/tkBcpVS6EirtzoSJBd5Adn/hzeuXeMf95B0Z4yFz6Fi0w bjHONiyy6qaipBn4lEuA9Qj1zynVWRasF1lIPHDDQ3rQrAmRc92Hn1kb+qzu8SvA iIdLo/M7kF2dkNyTYxdXRPPkL17YelCLtv+MFtgd1pdkXvb2yrmj7XwXXLREGeg8 RQbbMz1Xpl8jhcqJXMlVL5zHYIM6/4IjTzOuy3qD0K38vDkRr7+b1YpkEfCY0KoN TN4xK8ZirDMxIekiyL/w1TPKan40B38vmTQhRdikaLtcoIjQRtY51w/FhlQgsx0/ wAZGCXY75yVCXM+G8KmrjrLlaMDSjkzLTsr8o/4Ni7qLEU4E1NbA122Zk7chzQ/D 8syWj29vTfbjf4WuPfygGcvkxWR6sZOyykcd3cBjSP61boIj6DDMXsf4aWgRO9te aQnu8fi3jMfPCajdRSpJBj6UqAa0O2511yg2Lz5OcokhbSArNQzGm1q6O7h/tgMo sbgv0xiPGXQaf8wfgNnNJPoPrwVRMChzItjfmSl3PLuTwMSziedI0LHBsxOXySkP /Iih4ewBLc0= =3PGd -----END PGP SIGNATURE-----