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Gentoo Linux Security Advisory GLSA 202012-17 |
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https://security.gentoo.org/ |
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Severity: Low |
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Title: D-Bus: Denial of service |
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Date: December 23, 2020 |
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Bugs: #755392 |
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ID: 202012-17 |
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Synopsis |
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======== |
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|
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A local Denial of Service vulnerability was discovered in D-Bus. |
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Background |
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========== |
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D-Bus is a message bus system which processes can use to talk to each |
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other. |
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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 sys-apps/dbus < 1.12.20 >= 1.12.20 |
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Description |
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=========== |
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|
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It was discovered that D-Bus did not properly handle the situation when |
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two usernames have the same numeric UID. |
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Impact |
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====== |
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An attacker could possibly cause a Denial of Service condition or |
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trigger other undefined behavior, possibly including incorrect |
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authorization decisions. |
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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 D-Bus users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.12.20" |
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References |
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========== |
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[ 1 ] dbus 1.12.20 security update announcement |
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https://lists.freedesktop.org/archives/ftp-release/2020-July/000758.html |
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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/202012-17 |
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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 2020 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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https://creativecommons.org/licenses/by-sa/2.5 |
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