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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2387 Low: libunwind security update 11 September 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libunwind Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux Server 7 Impact/Access: Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-3239 Reference: ESB-2015.2220 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2015-1768.html https://rhn.redhat.com/errata/RHSA-2015-1769.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: Low: libunwind security update Advisory ID: RHSA-2015:1768-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1768.html Issue date: 2015-09-10 CVE Names: CVE-2015-3239 ===================================================================== 1. Summary: Updated libunwind packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 6 - x86_64 3. Description: Libunwind provides a C ABI to determine the call-chain of a program. An off-by-one array indexing error was found in the libunwind API, which could cause an error when reading untrusted binaries or dwarf debug info data. Red Hat products do not call the API in this way; and it is unlikely that any exploitable attack vector exists in current builds or supported usage. (CVE-2015-3239) This issue was discovered by Paolo Bonzini of Red Hat. All users of libunwind are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1232265 - CVE-2015-3239 libunwind: off-by-one in dwarf_to_unw_regnum() 6. Package List: Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 6: Source: libunwind-1.1-4.1.el6ost.src.rpm x86_64: libunwind-1.1-4.1.el6ost.x86_64.rpm libunwind-debuginfo-1.1-4.1.el6ost.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/ 7. References: https://access.redhat.com/security/cve/CVE-2015-3239 https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFV8fC0XlSAg2UNWIIRAiJPAJ9zsMQMgM34lS9eUyf9D0K4X0rL9QCfcTMX LdFtheAu17m2G54YX3sYW3M= =GYbN - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Low: libunwind security update Advisory ID: RHSA-2015:1769-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1769.html Issue date: 2015-09-10 CVE Names: CVE-2015-3239 ===================================================================== 1. Summary: Updated libunwind packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - x86_64 3. Description: Libunwind provides a C ABI to determine the call-chain of a program. An off-by-one array indexing error was found in the libunwind API, which could cause an error when reading untrusted binaries or dwarf debug info data. Red Hat products do not call the API in this way; and it is unlikely that any exploitable attack vector exists in current builds or supported usage. (CVE-2015-3239) This issue was discovered by Paolo Bonzini of Red Hat. All users of libunwind are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1232265 - CVE-2015-3239 libunwind: off-by-one in dwarf_to_unw_regnum() 6. Package List: Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7: Source: libunwind-1.1-4.1.el7ost.src.rpm x86_64: libunwind-1.1-4.1.el7ost.x86_64.rpm libunwind-debuginfo-1.1-4.1.el7ost.x86_64.rpm libunwind-devel-1.1-4.1.el7ost.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/ 7. References: https://access.redhat.com/security/cve/CVE-2015-3239 https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFV8fDaXlSAg2UNWIIRAu2cAJ0bVBh0/PZmuR0LqvVs2d6fv8QU4gCfV1es IUqjA1rVQA50Wk0XYWb2TMk= =4S0l - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVfIRHH6ZAP0PgtI9AQKr1Q//YzzRt1Yr+0EbIhH2GiN/WoMYzxP5mpMf OUBUucibz7wjK22XIWb9IcVJ7GTdMO2VJiA2FyAoa8GFbJ33Kw8GcFN9kA+SLDXm aoBBpXRo8qEwKF6eCiSYGczP70rzo9BSc6sex9ERkZNiQc35GuFqp69Hvy+aCHc6 /6wCKnIUEVHthE3n8pWhjqjWWAH1qXti5tqBQb2ZMLqE9TogVMFPe4KrD/Eu0t/l 3dDDwyuf5u0z3G+31eboMFkyn+w6z62smQTRqyhWNO2o6vu01kUdRpcN/l8BMuv5 0e75M6RTPks828GA8RTuimPgpPx7zeWWi9pw4hm0p+rwKKcHXau3pE17c7IVC3sg ilVLuOxgPVeWjunMaEGwtSIw+xk+FzDsT0GmoP3N9jK36sjvMkNCvg3vrP4JLi7s anrXRvehHYWR8/oTGgscWHWUYBMra1rEFXR1Rx/GnjyOe8G5ljbMZHGIfVnGsTuv /TcWWtCpP8Ve6MhZsm8poFuLEX/1oMIj0MT2qyIaghwlV47Da8vJczAEks+zWWsN V4pUgmyXoOWjHrZFf7h9TX1cnEvjIiir14G0ZxI4MOEkWcw5xzurBQel0GJY0ykJ u2lmZkU4TxQJkW7bhGA1F7jC4j3O2lIEicBIgVAO6hFGEd6h0Ch6y296UaYTI50u 40kH2BzmNLQ= =yBUb -----END PGP SIGNATURE-----