drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in rpcbind
Name: |
Denial of Service in rpcbind |
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ID: |
RHSA-2017:1267-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Di, 23. Mai 2017, 16:57 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2017-8779 |
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Applikationen: |
rpcbind |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Important: rpcbind security update Advisory ID: RHSA-2017:1267-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:1267 Issue date: 2017-05-23 CVE Names: CVE-2017-8779 =====================================================================
1. Summary:
An update for rpcbind is now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
3. Description:
The rpcbind utility is a server that converts Remote Procedure Call (RPC) program numbers into universal addresses. It must be running on the host to be able to make RPC calls on a server on that machine.
Security Fix(es):
* It was found that due to the way rpcbind uses libtirpc (libntirpc), a memory leak can occur when parsing specially crafted XDR messages. An attacker sending thousands of messages to rpcbind could cause its memory usage to grow without bound, eventually causing it to be terminated by the OOM killer. (CVE-2017-8779)
4. Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1448124 - CVE-2017-8779 rpcbind, libtirpc, libntirpc: Memory leak when failing to parse XDR strings or bytearrays
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source: rpcbind-0.2.0-13.el6_9.src.rpm
i386: rpcbind-0.2.0-13.el6_9.i686.rpm rpcbind-debuginfo-0.2.0-13.el6_9.i686.rpm
x86_64: rpcbind-0.2.0-13.el6_9.x86_64.rpm rpcbind-debuginfo-0.2.0-13.el6_9.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: rpcbind-0.2.0-13.el6_9.src.rpm
x86_64: rpcbind-0.2.0-13.el6_9.x86_64.rpm rpcbind-debuginfo-0.2.0-13.el6_9.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: rpcbind-0.2.0-13.el6_9.src.rpm
i386: rpcbind-0.2.0-13.el6_9.i686.rpm rpcbind-debuginfo-0.2.0-13.el6_9.i686.rpm
ppc64: rpcbind-0.2.0-13.el6_9.ppc64.rpm rpcbind-debuginfo-0.2.0-13.el6_9.ppc64.rpm
s390x: rpcbind-0.2.0-13.el6_9.s390x.rpm rpcbind-debuginfo-0.2.0-13.el6_9.s390x.rpm
x86_64: rpcbind-0.2.0-13.el6_9.x86_64.rpm rpcbind-debuginfo-0.2.0-13.el6_9.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: rpcbind-0.2.0-13.el6_9.src.rpm
i386: rpcbind-0.2.0-13.el6_9.i686.rpm rpcbind-debuginfo-0.2.0-13.el6_9.i686.rpm
x86_64: rpcbind-0.2.0-13.el6_9.x86_64.rpm rpcbind-debuginfo-0.2.0-13.el6_9.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-2017-8779 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 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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