drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in GNU Bash
Name: |
Mehrere Probleme in GNU Bash |
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ID: |
USN-3294-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 16.10, Ubuntu 17.04 |
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Datum: |
Mi, 17. Mai 2017, 23:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7543
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0634
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9401
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5932 |
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Applikationen: |
GNU Bash |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============2190155850009692265== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="scqj9PaQXjoRx6pALMikttmkjLcmFkKUR"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --scqj9PaQXjoRx6pALMikttmkjLcmFkKUR Content-Type: multipart/mixed; boundary="siIl6KVKR6FWdWQKtB3WS1wWmU1T0MusN" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <f3f6a164-e36d-6f71-6cc5-6fa2627b89e6@canonical.com> Subject: [USN-3294-1] Bash vulnerabilities
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========================================================================== Ubuntu Security Notice USN-3294-1 May 17, 2017
bash vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04 - Ubuntu 16.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Bash.
Software Description: - bash: GNU Bourne Again SHell
Details:
Bernd Dietzel discovered that Bash incorrectly expanded the hostname when displaying the prompt. If a remote attacker were able to modify a hostname, this flaw could be exploited to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-0634)
It was discovered that Bash incorrectly handled the SHELLOPTS and PS4 environment variables. A local attacker could use this issue to execute arbitrary code with root privileges. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7543)
It was discovered that Bash incorrectly handled the popd command. A remote attacker could possibly use this issue to bypass restricted shells. (CVE-2016-9401)
It was discovered that Bash incorrectly handled path autocompletion. A local attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 17.04. (CVE-2017-5932)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.04: bash 4.4-2ubuntu1.1
Ubuntu 16.10: bash 4.3-15ubuntu1.1
Ubuntu 16.04 LTS: bash 4.3-14ubuntu1.2
Ubuntu 14.04 LTS: bash 4.3-7ubuntu1.7
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-3294-1 CVE-2016-0634, CVE-2016-7543, CVE-2016-9401, CVE-2017-5932
Package Information: https://launchpad.net/ubuntu/+source/bash/4.4-2ubuntu1.1 https://launchpad.net/ubuntu/+source/bash/4.3-15ubuntu1.1 https://launchpad.net/ubuntu/+source/bash/4.3-14ubuntu1.2 https://launchpad.net/ubuntu/+source/bash/4.3-7ubuntu1.7
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