drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in PolicyKit
Name: |
Mehrere Probleme in PolicyKit |
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ID: |
USN-3717-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.10, Ubuntu 18.04 LTS |
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Datum: |
Mo, 16. Juli 2018, 23:06 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3218
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1116
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4625
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3255 |
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Applikationen: |
policykit |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============7581718912788621076== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="Tz3XBuyT2qWHhEMu8z1INmzVN2puoRZVY"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Tz3XBuyT2qWHhEMu8z1INmzVN2puoRZVY Content-Type: multipart/mixed; boundary="aRUzwk9Z7IVeRLFDXO9BQqbuBbl1JtSur"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <dbac67a6-4bf7-0d48-bce4-b31c388f6084@canonical.com> Subject: [USN-3717-1] PolicyKit vulnerabilities
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========================================================================== Ubuntu Security Notice USN-3717-1 July 16, 2018
policykit-1 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS - Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in PolicyKit.
Software Description: - policykit-1: framework for managing administrative policies and privileges
Details:
Tavis Ormandy discovered that PolicyKit incorrectly handled certain invalid object paths. A local attacker could possibly use this issue to cause PolicyKit to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-3218)
It was discovered that PolicyKit incorrectly handled certain duplicate action IDs. A local attacker could use this issue to cause PolicyKit to crash, resulting in a denial of service, or possibly escalate privileges. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-3255)
Tavis Ormandy discovered that PolicyKit incorrectly handled duplicate cookie values. A local attacker could use this issue to cause PolicyKit to crash, resulting in a denial of service, or possibly escalate privileges. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-4625)
Matthias Gerstner discovered that PolicyKit incorrectly checked users. A local attacker could possibly use this issue to cause authentication dialogs to show up for other users, leading to a denial of service or an information leak. (CVE-2018-1116)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: libpolkit-backend-1-0 0.105-20ubuntu0.18.04.1
Ubuntu 17.10: libpolkit-backend-1-0 0.105-18ubuntu0.1
Ubuntu 16.04 LTS: libpolkit-backend-1-0 0.105-14.1ubuntu0.1
Ubuntu 14.04 LTS: libpolkit-backend-1-0 0.105-4ubuntu3.14.04.2
After a standard system update you need to reboot your computer to make all the necessary changes.
References: https://usn.ubuntu.com/usn/usn-3717-1 CVE-2015-3218, CVE-2015-3255, CVE-2015-4625, CVE-2018-1116
Package Information: https://launchpad.net/ubuntu/+source/policykit-1/0.105-20ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/policykit-1/0.105-18ubuntu0.1 https://launchpad.net/ubuntu/+source/policykit-1/0.105-14.1ubuntu0.1 https://launchpad.net/ubuntu/+source/policykit-1/0.105-4ubuntu3.14.04.2
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