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Gentoo Linux Security Advisory GLSA 202008-15 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Docker: Information disclosure |
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Date: August 26, 2020 |
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Bugs: #729208 |
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ID: 202008-15 |
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Synopsis |
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======== |
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A flaw in Docker allowed possible information leakage. |
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Background |
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========== |
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Docker is the world’s leading software containerization platform. |
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Affected packages |
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================= |
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 app-emulation/docker < 19.03.12 >= 19.03.12 |
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Description |
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=========== |
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It was found that Docker created network bridges which by default |
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accept IPv6 router advertisements. |
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Impact |
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====== |
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An attacker who gained access to a container with CAP_NET_RAW |
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capability may be able to to spoof router advertisements, resulting in |
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information disclosure or denial of service. |
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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 Docker users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-emulation/docker-19.03.12" |
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References |
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========== |
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[ 1 ] CVE-2020-13401 |
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https://nvd.nist.gov/vuln/detail/CVE-2020-13401 |
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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/202008-15 |
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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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