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Gentoo Linux Security Advisory GLSA 201706-29 |
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https://security.gentoo.org/ |
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Severity: High |
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Title: KAuth and KDELibs: Privilege escalation |
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Date: June 27, 2017 |
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Bugs: #618108 |
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ID: 201706-29 |
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Synopsis |
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======== |
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|
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A vulnerability in KAuth and KDELibs allows local users to gain root |
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privileges. |
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Background |
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========== |
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|
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KAuth provides a convenient, system-integrated way to offload actions |
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that need to be performed as a privileged user (root, for example) to |
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small (hopefully secure) helper utilities. |
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The KDE libraries, basis of KDE and used by many open source projects. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 kde-frameworks/kauth < 5.29.0-r1 >= 5.29.0-r1 |
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2 kde-frameworks/kdelibs < 4.14.32 >= 4.14.32 |
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------------------------------------------------------------------- |
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2 affected packages |
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|
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Description |
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=========== |
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|
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KAuth and KDELibs contains a logic flaw in which the service invoking |
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D-Bus is not properly checked. This allows spoofing the identity of the |
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caller and with some carefully crafted calls can lead to gaining root |
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from an unprivileged account. |
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|
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Impact |
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====== |
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|
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A local attacker could spoof the identity of the caller invoking D-Bus, |
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possibly resulting in gaining privileges. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All KAuth users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=kde-frameworks/kauth-5.29.0-r1" |
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All KDELibs users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=kde-frameworks/kdelibs-4.14.32" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2017-8422 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-8422 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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https://security.gentoo.org/glsa/201706-29 |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2017 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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